We Make Expert hand work for you
EZ-CSS is a lightweight (only 1kb) CSS framework for easily creating table-less layouts. The framework enables you to create multiple columns of any width, with or without gutters of any width
Originally posted here:
Tiny CSS Framework For Rapid Layouts: EZ-CSS
Images are best presented and more manageable to the viewer if you add a visually appealing effects to your gallery and make it more easier to navigate. I have listed here the best JavaScript image galleries and also included some of the best tutorials on how to make one and use them in your own
The rest is here:
Ultimate Reference of Javascript Image Galleries and Slideshows
Mastering Regular Expressions quickly covers the basics of regular-expression syntax, then delves into the mechanics of expression-processing, common pitfalls, performance issues, and implementation-specific differences. Written in an engaging style and sprinkled with solutions to complex real-world problems, MRE offers a wealth information that you use.
I will start with some simple usage examples of the regular expressions and continue with a huge list of cases for various situations where we would normally need a regex to operate. We will use simple functions which return TRUE or FALSE. $regex will serve as our regular expression to match against and $text will be our text (pretty obvious):
function do_reg($text, $regex)
{
if (preg_match($regex, $text)) {
return TRUE;
}
else {
return FALSE;
}
}
The next function will get the part of a given string ($text) matched by the regex ($regex) using a group srorage ($regs). By changing the $regs[0] to $regs[1] we can use a capturing group (in this case griup 1) to match against. The capturing group can also have a name ($regs['groupname']):
function do_reg($text, $regex, $regs)
{
if (preg_match($regex, $text, $regs)) {
$result = $regs[0];
}
else {
$result = "";
}
return $result;
}
The following function will return an array of all regex matches in a given string ($text):
function do_reg($text, $regex)
{
preg_match_all($regex, $text, $result, PREG_PATTERN_ORDER);
return $result = $result[0];
}
Next we can iterate (loop) over all matches in a string ($text) and output the results:
function do_reg($text, $regex)
{
preg_match_all($regex, $text, $result, PREG_PATTERN_ORDER);
for ($i = 0; $i < count($result[0]); $i++) {
$result[0][$i];
}
}
Extending the above one we can iterate over all matches ($text) and capture groups in a string ($text):
function do_reg($text, $regex)
{
preg_match_all($regex, $text, $result, PREG_SET_ORDER);
for ($matchi = 0; $matchi < count($result); $matchi++) {
for ($backrefi = 0; $backrefi < count($result[$matchi]); $backrefi++) {
$result[$matchi][$backrefi];
}
}
}
}
REGULAR EXPRESSION EXAMPLES BY SITUATIONS AND NEEDS:
//Address: State code (US)
'/\\b(?:A[KLRZ]|C[AOT]|D[CE]|FL|GA|HI|I[ADLN]|K[SY]|LA|M[ADEINOST]|N[CDEHJMVY]|O[HKR]|PA|RI|S[CD]|T[NX]|UT|V[AT]|W[AIVY])\\b/'
//Address: ZIP code (US)
'\b[0-9]{5}(?:-[0-9]{4})?\b'
Columns
//Columns: Match a regex starting at a specific column on a line.
'^.{%SKIPAMOUNT%}(%REGEX%)'
//Columns: Range of characters on a line, captured into backreference 1
//Iterate over all matches to extract a column of text from a file
//E.g. to grab the characters in colums 8..10, set SKIPAMOUNT to 7, and CAPTUREAMOUNT to 3
'^.{%SKIPAMOUNT%}(.{%CAPTUREAMOUNT%})'
Credit cards
//Credit card: All major cards
'^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6011[0-9]{12}|3(?:0[0-5]|[68][0-9])[0-9]{11}|3[47][0-9]{13})$'
//Credit card: American Express
'^3[47][0-9]{13}$'
//Credit card: Diners Club
'^3(?:0[0-5]|[68][0-9])[0-9]{11}$'
//Credit card: Discover
'^6011[0-9]{12}$'
//Credit card: MasterCard
'^5[1-5][0-9]{14}$'
//Credit card: Visa
'^4[0-9]{12}(?:[0-9]{3})?$'
//Credit card: remove non-digits
'/[^0-9]+/'
CSV
//CSV: Change delimiter
//Changes the delimiter from a comma into a tab.
//The capturing group makes sure delimiters inside double-quoted entries are ignored.
'("[^"\r\n]*")?,(?![^",\r\n]*"$)'
//CSV: Complete row, all fields.
//Match complete rows in a comma-delimited file that has 3 fields per row,
//capturing each field into a backreference.
//To match CSV rows with more or fewer fields, simply duplicate or delete the capturing groups.
'^("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*)$'
//CSV: Complete row, certain fields.
//Set %SKIPLEAD% to the number of fields you want to skip at the start, and %SKIPTRAIL% to
//the number of fields you want to ignore at the end of each row.
//This regex captures 3 fields into backreferences. To capture more or fewer fields,
//simply duplicate or delete the capturing groups.
'^(?:(?:"[^"\r\n]*"|[^,\r\n]*),){%SKIPLEAD%}("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*)(?:(?:"[^"\r\n]*"|[^,\r\n]*),){%SKIPTRAIL%}$'
//CSV: Partial row, certain fields
//Match the first SKIPLEAD+3 fields of each rows in a comma-delimited file that has SKIPLEAD+3
//or more fields per row. The 3 fields after SKIPLEAD are each captured into a backreference.
//All other fields are ignored. Rows that have less than SKIPLEAD+3 fields are skipped.
//To capture more or fewer fields, simply duplicate or delete the capturing groups.
'^(?:(?:"[^"\r\n]*"|[^,\r\n]*),){%SKIPLEAD%}("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*)'
//CSV: Partial row, leading fields
//Match the first 3 fields of each rows in a comma-delimited file that has 3 or more fields per row.
//The first 3 fields are each captured into a backreference. All other fields are ignored.
//Rows that have less than 3 fields are skipped. To capture more or fewer fields,
//simply duplicate or delete the capturing groups.
'^("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*)'
//CSV: Partial row, variable leading fields
//Match the first 3 fields of each rows in a comma-delimited file.
//The first 3 fields are each captured into a backreference.
//All other fields are ignored. If a row has fewer than 3 field, some of the backreferences
//will remain empty. To capture more or fewer fields, simply duplicate or delete the capturing groups.
//The question mark after each group makes that group optional.
'^("[^"\r\n]*"|[^,\r\n]*),("[^"\r\n]*"|[^,\r\n]*)?,("[^"\r\n]*"|[^,\r\n]*)?'
Dates
//Date d/m/yy and dd/mm/yyyy
//1/1/00 through 31/12/99 and 01/01/1900 through 31/12/2099
//Matches invalid dates such as February 31st
'\b(0?[1-9]|[12][0-9]|3[01])[- /.](0?[1-9]|1[012])[- /.](19|20)?[0-9]{2}\b'
//Date dd/mm/yyyy
//01/01/1900 through 31/12/2099
//Matches invalid dates such as February 31st
'(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.](19|20)[0-9]{2}'
//Date m/d/y and mm/dd/yyyy
//1/1/99 through 12/31/99 and 01/01/1900 through 12/31/2099
//Matches invalid dates such as February 31st
//Accepts dashes, spaces, forward slashes and dots as date separators
'\b(0?[1-9]|1[012])[- /.](0?[1-9]|[12][0-9]|3[01])[- /.](19|20)?[0-9]{2}\b'
//Date mm/dd/yyyy
//01/01/1900 through 12/31/2099
//Matches invalid dates such as February 31st
'(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.](19|20)[0-9]{2}'
//Date yy-m-d or yyyy-mm-dd
//00-1-1 through 99-12-31 and 1900-01-01 through 2099-12-31
//Matches invalid dates such as February 31st
'\b(19|20)?[0-9]{2}[- /.](0?[1-9]|1[012])[- /.](0?[1-9]|[12][0-9]|3[01])\b'
//Date yyyy-mm-dd
//1900-01-01 through 2099-12-31
//Matches invalid dates such as February 31st
'(19|20)[0-9]{2}[- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])'
Delimiters
//Delimiters: Replace commas with tabs //Replaces commas with tabs, except for commas inside double-quoted strings '((?:"[^",]*+")|[^,]++)*+,'
Email addresses
//Email address
//Use this version to seek out email addresses in random documents and texts.
//Does not match email addresses using an IP address instead of a domain name.
//Does not match email addresses on new-fangled top-level domains with more than 4 letters such as .museum.
//Including these increases the risk of false positives when applying the regex to random documents.
'\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b'
//Email address (anchored)
//Use this anchored version to check if a valid email address was entered.
//Does not match email addresses using an IP address instead of a domain name.
//Does not match email addresses on new-fangled top-level domains with more than 4 letters such as .museum.
//Requires the "case insensitive" option to be ON.
'^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$'
//Email address (anchored; no consecutive dots)
//Use this anchored version to check if a valid email address was entered.
//Improves on the original email address regex by excluding addresses with consecutive dots such as john@aol...com
//Does not match email addresses using an IP address instead of a domain name.
//Does not match email addresses on new-fangled top-level domains with more than 4 letters such as .museum.
//Including these increases the risk of false positives when applying the regex to random documents.
'^[A-Z0-9._%-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,4}$'
//Email address (no consecutive dots)
//Use this version to seek out email addresses in random documents and texts.
//Improves on the original email address regex by excluding addresses with consecutive dots such as john@aol...com
//Does not match email addresses using an IP address instead of a domain name.
//Does not match email addresses on new-fangled top-level domains with more than 4 letters such as .museum.
//Including these increases the risk of false positives when applying the regex to random documents.
'\b[A-Z0-9._%-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,4}\b'
//Email address (specific TLDs)
//Does not match email addresses using an IP address instead of a domain name.
//Matches all country code top level domains, and specific common top level domains.
'^[A-Z0-9._%-]+@[A-Z0-9.-]+\.(?:[A-Z]{2}|com|org|net|biz|info|name|aero|biz|info|jobs|museum|name)$'
//Email address: Replace with HTML link
'\b(?:mailto:)?([A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4})\b'
HTML
//HTML comment '' //HTML file //Matches a complete HTML file. Place round brackets around the .*? parts you want to extract from the file. //Performance will be terrible on HTML files that miss some of the tags //(and thus won't be matched by this regular expression). Use the atomic version instead when your search //includes such files (the atomic version will also fail invalid files, but much faster). '.*?.*?.*?.*?]*>.*?.*?' //HTML file (atomic) //Matches a complete HTML file. Place round brackets around the .*? parts you want to extract from the file. //Atomic grouping maintains the regular expression's performance on invalid HTML files. '(?>.*?)(?>.*?)(?>.*?)(?>.*?]*>)(?>.*?).*?' //HTML tag //Matches the opening and closing pair of whichever HTML tag comes next. //The name of the tag is stored into the first capturing group. //The text between the tags is stored into the second capturing group. '< ([A-Z][A-Z0-9]*)[^>]*>(.*?)' //HTML tag //Matches the opening and closing pair of a specific HTML tag. //Anything between the tags is stored into the first capturing group. //Does NOT properly match tags nested inside themselves. '< %TAG%[^>]*>(.*?)' //HTML tag //Matches any opening or closing HTML tag, without its contents. ']*>'
IP addresses
//IP address
//Matches 0.0.0.0 through 999.999.999.999
//Use this fast and simple regex if you know the data does not contain invalid IP addresses.
'\b([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\b'
//IP address
//Matches 0.0.0.0 through 999.999.999.999
//Use this fast and simple regex if you know the data does not contain invalid IP addresses,
//and you don't need access to the individual IP numbers.
'\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b'
//IP address
//Matches 0.0.0.0 through 255.255.255.255
//Use this regex to match IP numbers with accurracy, without access to the individual IP numbers.
'\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b'
//IP address
//Matches 0.0.0.0 through 255.255.255.255
//Use this regex to match IP numbers with accurracy.
//Each of the 4 numbers is stored into a capturing group, so you can access them for further processing.
'\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b'
Lines
//Lines: Absolutely blank (no whitespace)
//Regex match does not include line break after the line.
'^$'
//Lines: Blank (may contain whitespace)
//Regex match does not include line break after the line.
'^[ \t]*$'
//Lines: Delete absolutely blank lines
//Regex match includes line break after the line.
'^\r?\n'
//Lines: Delete blank lines
//Regex match includes line break after the line.
'^[ \t]*$\r?\n'
//Lines: Delete duplicate lines
//This regex matches two or more lines, each identical to the first line.
//It deletes all of them, except the first.
'^(.*)(\r?\n\1)+$'
//Lines: Truncate a line after a regex match.
//The regex you specify is guaranteed to match only once on each line.
//If the original regex you specified should match more than once,
//the line will be truncated after the last match.
preg_replace('^.*(%REGEX%)(.*)$', '$1$2', $text);
//Lines: Truncate a line before a regex match.
//If the regex matches more than once on the same line, everything before the last match is deleted.
preg_replace('^.*(%REGEX%)', '$1', $text);
//Lines: Truncate a line before and after a regex match.
//This will delete everything from the line not matched by the regular expression.
preg_replace('^.*(%REGEX%).*$', '$1', $text);
Logs
//Logs: Apache web server //Successful hits to HTML files only. Useful for counting the number of page views. '^((?#client IP or domain name)\S+)\s+((?#basic authentication)\S+\s+\S+)\s+\[((?#date and time)[^]]+)\]\s+"(?:GET|POST|HEAD) ((?#file)/[^ ?"]+?\.html?)\??((?#parameters)[^ ?"]+)? HTTP/[0-9.]+"\s+(?#status code)200\s+((?#bytes transferred)[-0-9]+)\s+"((?#referrer)[^"]*)"\s+"((?#user agent)[^"]*)"$' //Logs: Apache web server //404 errors only '^((?#client IP or domain name)\S+)\s+((?#basic authentication)\S+\s+\S+)\s+\[((?#date and time)[^]]+)\]\s+"(?:GET|POST|HEAD) ((?#file)[^ ?"]+)\??((?#parameters)[^ ?"]+)? HTTP/[0-9.]+"\s+(?#status code)404\s+((?#bytes transferred)[-0-9]+)\s+"((?#referrer)[^"]*)"\s+"((?#user agent)[^"]*)"$'
Numbers
//Number: Currency amount
//Optional thousands separators; optional two-digit fraction
'\b[0-9]{1,3}(?:,?[0-9]{3})*(?:\.[0-9]{2})?\b'
//Number: Currency amount
//Optional thousands separators; mandatory two-digit fraction
'\b[0-9]{1,3}(?:,?[0-9]{3})*\.[0-9]{2}\b'
//Number: floating point
//Matches an integer or a floating point number with mandatory integer part. The sign is optional.
'[-+]?\b[0-9]+(\.[0-9]+)?\b'
//Number: floating point
//Matches an integer or a floating point number with optional integer part. The sign is optional.
'[-+]?\b[0-9]*\.?[0-9]+\b'
//Number: hexadecimal (C-style)
'\b0[xX][0-9a-fA-F]+\b'
//Number: Insert thousands separators
//Replaces 123456789.00 with 123,456,789.00
'(?< =[0-9])(?=(?:[0-9]{3})+(?![0-9]))'
//Number: integer
//Will match 123 and 456 as separate integer numbers in 123.456
'\b\d+\b'
//Number: integer
//Does not match numbers like 123.456
'(?
Passwords
//Password complexity
//Tests if the input consists of 6 or more letters, digits, underscores and hyphens.
//The input must contain at least one upper case letter, one lower case letter and one digit.
'\A(?=[-_a-zA-Z0-9]*?[A-Z])(?=[-_a-zA-Z0-9]*?[a-z])(?=[-_a-zA-Z0-9]*?[0-9])[-_a-zA-Z0-9]{6,}\z'
//Password complexity
//Tests if the input consists of 6 or more characters.
//The input must contain at least one upper case letter, one lower case letter and one digit.
'\A(?=[-_a-zA-Z0-9]*?[A-Z])(?=[-_a-zA-Z0-9]*?[a-z])(?=[-_a-zA-Z0-9]*?[0-9])\S{6,}\z'
File paths
//Path: Windows '\b[a-z]:\\[^/:*?"<>|\r\n]*' //Path: Windows //Different elements of the path are captured into backreferences. '\b((?#drive)[a-z]):\\((?#folder)[^/:*?"<>|\r\n]*\\)?((?#file)[^\\/:*?"<>|\r\n]*)' //Path: Windows or UNC '(?:(?#drive)\b[a-z]:|\\\\[a-z0-9]+)\\[^/:*?"<>|\r\n]*' //Path: Windows or UNC //Different elements of the path are captured into backreferences. '((?#drive)\b[a-z]:|\\\\[a-z0-9]+)\\((?#folder)[^/:*?"<>|\r\n]*\\)?((?#file)[^\\/:*?"<>|\r\n]*)'
Phone numbers
//Phone Number (North America)
//Matches 3334445555, 333.444.5555, 333-444-5555, 333 444 5555, (333) 444 5555 and all combinations thereof.
//Replaces all those with (333) 444-5555
preg_replace('\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})', '(\1) \2-\3', $text);
//Phone Number (North America)
//Matches 3334445555, 333.444.5555, 333-444-5555, 333 444 5555, (333) 444 5555 and all combinations thereof.
'\(?[0-9]{3}\)?[-. ]?[0-9]{3}[-. ]?[0-9]{4}'
Postal codes
//Postal code (Canada)
'\b[ABCEGHJKLMNPRSTVXY][0-9][A-Z] [0-9][A-Z][0-9]\b'
//Postal code (UK)
'\b[A-Z]{1,2}[0-9][A-Z0-9]? [0-9][ABD-HJLNP-UW-Z]{2}\b'
Programming
//Programming: # comment
//Single-line comment started by # anywhere on the line
'#.*$'
//Programming: # preprocessor statement
//Started by # at the start of the line, possibly preceded by some whitespace.
'^\s*#.*$'
//Programming: /* comment */
//Does not match nested comments. Most languages, including C, Java, C#, etc.
//do not allow comments to be nested. I.e. the first */ closes the comment.
'/\*.*?\*/'
//Programming: // comment
//Single-line comment started by // anywhere on the line
'//.*$'
//Programming: GUID
//Microsoft-style GUID, numbers only.
'[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}'
//Programming: GUID
//Microsoft-style GUID, with optional parentheses or braces.
//(Long version, if your regex flavor doesn't support conditionals.)
'[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}|\([A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}\)|\{[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}\}'
//Programming: GUID
//Microsoft-style GUID, with optional parentheses or braces.
//Short version, illustrating the use of regex conditionals. Not all regex flavors support conditionals.
//Also, when applied to large chunks of data, the regex using conditionals will likely be slower
//than the long version. Straight alternation is much easier to optimize for a regex engine.
'(?:(\()|(\{))?[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}(?(1)\))(?(2)\})'
//Programming: Remove escapes
//Remove backslashes used to escape other characters
preg_replace('\\(.)', '\1', $text);
//Programming: String
//Quotes may appear in the string when escaped with a backslash.
//The string may span multiple lines.
'"[^"\\]*(?:\\.[^"\\]*)*"'
//Programming: String
//Quotes may appear in the string when escaped with a backslash.
//The string cannot span multiple lines.
'"[^"\\\r\n]*(?:\\.[^"\\\r\n]*)*"'
//Programming: String
//Quotes may not appear in the string. The string cannot span multiple lines.
'"[^"\r\n]*"'
Quotes
//Quotes: Replace smart double quotes with straight double quotes.
//ANSI version for use with 8-bit regex engines and the Windows code page 1252.
preg_replace('[\x84\x93\x94]', '"', $text);
//Quotes: Replace smart double quotes with straight double quotes.
//Unicode version for use with Unicode regex engines.
preg_replace('[\u201C\u201D\u201E\u201F\u2033\u2036]', '"', $text);
//Quotes: Replace smart single quotes and apostrophes with straight single quotes.
//Unicode version for use with Unicode regex engines.
preg_replace("[\u2018\u2019\u201A\u201B\u2032\u2035]", "'", $text);
//Quotes: Replace smart single quotes and apostrophes with straight single quotes.
//ANSI version for use with 8-bit regex engines and the Windows code page 1252.
preg_replace("[\x82\x91\x92]", "'", $text);
//Quotes: Replace straight apostrophes with smart apostrophes
preg_replace("\b'\b", "?", $text);
//Quotes: Replace straight double quotes with smart double quotes.
//ANSI version for use with 8-bit regex engines and the Windows code page 1252.
preg_replace('\B"\b([^"\x84\x93\x94\r\n]+)\b"\B', '?\1?', $text);
//Quotes: Replace straight double quotes with smart double quotes.
//Unicode version for use with Unicode regex engines.
preg_replace('\B"\b([^"\u201C\u201D\u201E\u201F\u2033\u2036\r\n]+)\b"\B', '?\1?', $text);
//Quotes: Replace straight single quotes with smart single quotes.
//Unicode version for use with Unicode regex engines.
preg_replace("\B'\b([^'\u2018\u2019\u201A\u201B\u2032\u2035\r\n]+)\b'\B", "?\1?", $text);
//Quotes: Replace straight single quotes with smart single quotes.
//ANSI version for use with 8-bit regex engines and the Windows code page 1252.
preg_replace("\B'\b([^'\x82\x91\x92\r\n]+)\b'\B", "?\1?", $text);
Escape
//Regex: Escape metacharacters
//Place a backslash in front of the regular expression metacharacters
preg_replace("[][{}()*+?.\\^$|]", "\\$0", $text);
Security
//Security: ASCII code characters excl. tab and CRLF
//Matches any single non-printable code character that may cause trouble in certain situations.
//Excludes tabs and line breaks.
'[\x00\x08\x0B\x0C\x0E-\x1F]'
//Security: ASCII code characters incl. tab and CRLF
//Matches any single non-printable code character that may cause trouble in certain situations.
//Includes tabs and line breaks.
'[\x00-\x1F]'
//Security: Escape quotes and backslashes
//E.g. escape user input before inserting it into a SQL statement
preg_replace("\\$0", "\\$0", $text);
//Security: Unicode code and unassigned characters excl. tab and CRLF
//Matches any single non-printable code character that may cause trouble in certain situations.
//Also matches any Unicode code point that is unused in the current Unicode standard,
//and thus should not occur in text as it cannot be displayed.
//Excludes tabs and line breaks.
'[^\P{C}\t\r\n]'
//Security: Unicode code and unassigned characters incl. tab and CRLF
//Matches any single non-printable code character that may cause trouble in certain situations.
//Also matches any Unicode code point that is unused in the current Unicode standard,
//and thus should not occur in text as it cannot be displayed.
//Includes tabs and line breaks.
'\p{C}'
//Security: Unicode code characters excl. tab and CRLF
//Matches any single non-printable code character that may cause trouble in certain situations.
//Excludes tabs and line breaks.
'[^\P{Cc}\t\r\n]'
//Security: Unicode code characters incl. tab and CRLF
//Matches any single non-printable code character that may cause trouble in certain situations.
//Includes tabs and line breaks.
'\p{Cc}'
SSN (Social security numbers)
//Social security number (US)
'\b[0-9]{3}-[0-9]{2}-[0-9]{4}\b'
Trim
//Trim whitespace (including line breaks) at the end of the string
preg_replace("\s+\z", "", $text);
//Trim whitespace (including line breaks) at the start and the end of the string
preg_replace("\A\s+|\s+\z", "", $text);
//Trim whitespace (including line breaks) at the start of the string
preg_replace("\A\s+", "", $text);
//Trim whitespace at the end of each line
preg_replace("[ \t]+$", "", $text);
//Trim whitespace at the start and the end of each line
preg_replace("^[ \t]+|[ \t]+$", "", $text);
//Trim whitespace at the start of each line
preg_replace("^[ \t]+", "", $text);
URL’s
//URL: Different URL parts //Protocol, domain name, page and CGI parameters are captured into backreferenes 1 through 4 '\b((?#protocol)https?|ftp)://((?#domain)[-A-Z0-9.]+)((?#file)/[-A-Z0-9+&@#/%=~_|!:,.;]*)?((?#parameters)\?[-A-Z0-9+&@#/%=~_|!:,.;]*)?' //URL: Different URL parts //Protocol, domain name, page and CGI parameters are captured into named capturing groups. //Works as it is with .NET, and after conversion by RegexBuddy on the Use page with Python, PHP/preg and PCRE. '\b(?https?|ftp)://(? [-A-Z0-9.]+)(? /[-A-Z0-9+&@#/%=~_|!:,.;]*)?(? \?[-A-Z0-9+&@#/%=~_|!:,.;]*)?' //URL: Find in full text //The final character class makes sure that if an URL is part of some text, punctuation such as a //comma or full stop after the URL is not interpreted as part of the URL. '\b(https?|ftp|file)://[-A-Z0-9+&@#/%?=~_|!:,.;]*[-A-Z0-9+&@#/%=~_|]' //URL: Replace URLs with HTML links preg_replace('\b(https?|ftp|file)://[-A-Z0-9+&@#/%?=~_|!:,.;]*[-A-Z0-9+&@#/%=~_|]', '\0', $text);
Words
//Words: Any word NOT matching a particular regex
//This regex will match all words that cannot be matched by %REGEX%.
//Explanation: Observe that the negative lookahead and the \w+ are repeated together.
//This makes sure we test that %REGEX% fails at EVERY position in the word, and not just at any particular position.
'\b(?:(?!%REGEX%)\w)+\b'
//Words: Delete repeated words
//Find any word that occurs twice or more in a row.
//Delete all occurrences except the first.
preg_replace('\b(\w+)(?:\s+\1\b)+', '\1', $text);
//Words: Near, any order
//Matches word1 and word2, or vice versa, separated by at least 1 and at most 3 words
'\b(?:word1(?:\W+\w+){1,3}\W+word2|word2(?:\W+\w+){1,3}\W+word1)\b'
//Words: Near, list
//Matches any pair of words out of the list word1, word2, word3, separated by at least 1 and at most 6 words
'\b(word1|word2|word3)(?:\W+\w+){1,6}\W+(word1|word2|word3)\b'
//Words: Near, ordered
//Matches word1 and word2, in that order, separated by at least 1 and at most 3 words
'\bword1(?:\W+\w+){1,3}\W+word2\b'
//Words: Repeated words
//Find any word that occurs twice or more in a row.
'\b(\w+)\s+\1\b'
//Words: Whole word
'\b%WORD%\b'
//Words: Whole word
//Match one of the words from the list
'\b(?:word1|word2|word3)\b'
//Words: Whole word at the end of a line
//Whitespace permitted after the word
'\b%WORD%\s*$'
//Words: Whole word at the end of a line
'\b%WORD%$'
//Words: Whole word at the start of a line
'^%WORD%\b'
//Words: Whole word at the start of a line
//Whitespace permitted before the word
'^\s*%WORD%\b'
Tags: mastering regular expressions, regular expression web development, regular expressions
To clearly illustrate how easy it is to access information from a database using Ajax, we are going to build MySQL queries on the fly and display the results on “ajax.html”. But before we proceed, lets do ground work. Create a table using the following command.
NOTE: We are asuing you have sufficient privilege to perform following MySQL operations
CREATE TABLE `ajax_example` ( `name` varchar(50) NOT NULL, `age` int(11) NOT NULL, `sex` varchar(1) NOT NULL, `wpm` int(11) NOT NULL, PRIMARY KEY (`name`) )
Now dump the following data into this table using the following SQL statements
INSERT INTO `ajax_example` VALUES ('Jerry', 120, 'm', 20);
INSERT INTO `ajax_example` VALUES ('Regis', 75, 'm', 44);
INSERT INTO `ajax_example` VALUES ('Frank', 45, 'm', 87);
INSERT INTO `ajax_example` VALUES ('Jill', 22, 'f', 72);
INSERT INTO `ajax_example` VALUES ('Tracy', 27, 'f', 0);
INSERT INTO `ajax_example` VALUES ('Julie', 35, 'f', 90);
Now lets have our client side HTML file which is ajax.html and it will have following code
<html>
<body>
<script language="javascript" type="text/javascript">
<!--
function ajaxFunction(){
var ajaxRequest; // The variable that makes Ajax possible!
try{
// Opera 8.0+, Firefox, Safari
ajaxRequest = new XMLHttpRequest();
}catch (e){
// Internet Explorer Browsers
try{
ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
}catch (e) {
try{
ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
}catch (e){
// Something went wrong
alert("Your browser broke!");
return false;
}
}
}
// Create a function that will receive data
// sent from the server and will update
// div section in the same page.
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
var ajaxDisplay = document.getElementById('ajaxDiv');
ajaxDisplay.value = ajaxRequest.responseText;
}
}
// Now get the value from user and pass it to
// server script.
var age = document.getElementById('age').value;
var wpm = document.getElementById('wpm').value;
var sex = document.getElementById('sex').value;
var queryString = "?age=" + age ;
queryString += "&wpm=" + wpm + "&sex=" + sex;
ajaxRequest.open("GET", "ajax-example.php" +
queryString, true);
ajaxRequest.send(null);
}
//-->
</script>
<form name='myForm'>
Max Age: <input type='text' id='age' /> <br />
Max WPM: <input type='text' id='wpm' />
<br />
Sex: <select id='sex'>
<option value="m">m</option>
<option value="f">f</option>
</select>
<input type='button' onclick='ajaxFunction()'
value='Query MySQL'/>
</form>
<div id='ajaxDiv'>Your result will display here</div>
</body>
</html>
NOTE: The way of passing variables in the Query is according to HTTP standard and the have formA
URL?variable1=value1;&variable2=value2;
Now the above code will give you a screen as given below
So now your client side script is ready. Now we have to write our server side script which will fetch age, wpm and sex from the database and will send it back to the client. Put the following code into “ajax-example.php” file
<?php
$dbhost = "localhost";
$dbuser = "dbusername";
$dbpass = "dbpassword";
$dbname = "dbname";
//Connect to MySQL Server
mysql_connect($dbhost, $dbuser, $dbpass);
//Select Database
mysql_select_db($dbname) or die(mysql_error());
// Retrieve data from Query String
$age = $_GET['age'];
$sex = $_GET['sex'];
$wpm = $_GET['wpm'];
// Escape User Input to help prevent SQL Injection
$age = mysql_real_escape_string($age);
$sex = mysql_real_escape_string($sex);
$wpm = mysql_real_escape_string($wpm);
//build query
$query = "SELECT * FROM ajax_example WHERE sex = '$sex'";
if(is_numeric($age))
$query .= " AND age <= $age";
if(is_numeric($wpm))
$query .= " AND wpm <= $wpm";
//Execute query
$qry_result = mysql_query($query) or die(mysql_error());
//Build Result String
$display_string = "<table>";
$display_string .= "<tr>";
$display_string .= "<th>Name</th>";
$display_string .= "<th>Age</th>";
$display_string .= "<th>Sex</th>";
$display_string .= "<th>WPM</th>";
$display_string .= "</tr>";
// Insert a new row in the table for each person returned
while($row = mysql_fetch_array($qry_result)){
$display_string .= "<tr>";
$display_string .= "<td>$row[name]</td>";
$display_string .= "<td>$row[age]</td>";
$display_string .= "<td>$row[sex]</td>";
$display_string .= "<td>$row[wpm]</td>";
$display_string .= "</tr>";
}
echo "Query: " . $query . "<br />";
$display_string .= "</table>";
echo $display_string;
?>
If you have successfully completed this lesson then you know how to use MySQL, PHP, HTML, and Javascript in tandem to write Ajax applications.
Tags: AJAX, AJAX PHP MYSQL, PHP, php development|
Popular JavaScript frameworks/libraries like jQuery, MooTools, Prototype, and YUI (to name a few of the most popular JavaScript frameworks out there) definitely have a solid foothold in the JavaScript framework arena. But for the more adventurous developers looking for new or alternative frameworks/libraries – there are some excellent frameworks outside the popular ones that’s worth checking out. It’s always good to consider all of your options before settling on a JavaScript framework that’s right for you and/or your team – and though there’s definitely a lot of compelling reasons to stick to the big names – it won’t hurt you any to at least try the alternatives. This article showcases 10 alternative and capable JavaScript frameworks/libraries to explore. Links to some of their demos (when available) are included in the entry so that you can see the framework in action. 1. SproutCore
SproutCore distinguishes itself by emphasizing its usage for bringing desktop application functionalities on the web. It’s got a healthy amount of easy-to-follow guides to get you going quickly and its own Google Group for your questions and for interacting with other SproutCore developers. SproutCore demonstrations: Photos, Sample Controls 2. Spry
Spry is Adobe’s Ajax framework. One of the many distinctive features of Spry is its tight integration with Adobe products (such as Dreamweaver, Flash and AIR). Just like any Adobe product, there’s already a ton of documentation to help you get started with Spry quickly. Spry demonstrations: Photo Gallery, RSS Reader, Form Validation Widgets 3. JavaScriptMVC
JavaScriptMVC is a featured-packed JavaScript framework. JSMVC applies the Model-View-Controller (MVC) architectural pattern to JavaScript, separating business logic from the presentation layer - resulting in increased modularity and ease-of-modification for either one of the components. It has a built-in automated testing unit (because “JavaScript testing sucks”) and even emails you when a user encounters an error. JavaScriptMVC demonstrations: Error Demo, History Demo, Todo Demo 4. qooxdoo
qooxdoo is an Ajax application framework that uses object-oriented JavaScript. It’s a framework that allows you to build a web application using JavaScript without worrying about HTML, CSS, and the DOM. It’s also a fully-featured graphical user interface toolkit (much like YUI) giving the developer built-in support for keyboard navigation, tabbed interfaces, and drag and drop capabilities - among other components. Qooxdoo demonstrations: demo browser, Feed Reader 5. midori
midori is a light-weight JavaScript framework. At it’s uncompressed state, it weighs in at only 45 KB (in comparison – jQuery in it’s minified state is 54KB). But just because its light doesn’t mean it’s lacking in complex JavaScript functions – midori offers common functions you’d expect from an JavaScript framework such as cross-browser Ajax functions, the ability to use CSS selectors (as opposed to midori-specific syntax) for matching elements in the DOM, and animated effects. midori demonstrations: drag and drop, popups, toggle 6. Archetype JavaScript Framework
The Archetype JavaScript Framework is a robust JavaScript framework that shares a lot of things in common with Prototype. Archetype has a dependency management system which initializes needed components for particular web pages(what components and CSS file to load – for example). Archetype also emphasizes code readability and coding best practices by being hard-lined about HTML/CSS/JavaScript separation (i.e. “unobtrusive JavaScript”) . Archetype demonstration: Slidy Presentation 7. June Framework
The June Framework was inspired by the Core library and uses the Module design pattern. For those using MS Visual Studio 2008, you’ll love the documentation that comes with the June Framework because it utilizes Visual Studio’s intellisense format (code hints/auto-completion while you write). June Framework demonstrations: setOpacity, highlight, getKeyName 8. UIZE
UIZE (pronounced “you eyes”) is another JavaScript framework the emphasizes the creation of full-on rich internet applications (RIA) as opposed to basic effects and widgets/components on a web page. It already comes packed with “ready-to-go” widgets such as a date picker, a table sorter, progress bar, and color picker. UIZE demonstrations: Slideshow With Wipes, Marquee and Image Port 9. SimpleJS
SimpleJS is a simple and lightweight, but feature-packed JavaScript framework with Ajax helper functions and animation effects. It uses a “plugins” system much like jQuery and MooTools to extend the framework. It’s the perfect solution for developers who don’t need much outside of basic Ajax functions and effects. SimpleJS demonstration: you can view the demos in the left side bar of the website under “Functions”. 10. Fleegix.js
Fleegix.js has an excellent “events system” that helps you listen, manipulate, and fire off DOM event (such as mouseover’s, onclick, etc.). It includes a function for serializing JavaScript objects into JSON format (fleegix.jason.serialize) and – because every other JavaScript framework has it – an awesome effects module to help you add rich, animated JavaScript animation onto your web page or web application. What are you rolling with?Which JavaScript framework do you use, and why? What compelling factors would make you look for another alternative? What features from other frameworks/libraries does your framework lack? Let’s start up a discussion on JavaScript frameworks in the comments! Contact for Web Design |
Earning Microsoft MCSE 70-290 certifications means that you have the expertise with Microsoft products and exams MCTS 70-640 exam, 70-649 and MCITP 70-646. Cisco certification certifies the candidates’ skills to install configure, operate routed environment. The CCNA 640-802 and Cisco 350-001 CCIE Routing and Switching Written Exam are the highest level Cisco certifications.
posted by: http://expertzweb.com
Tags: Javascript, javascript framework, Javascript UILast time, I had published a poll asking which is the best PHP framework and in that poll Zend Framework stand out itself to be the most popular PHP frameworkamong the PHP developers. This time ,I’ve come up with another Poll and I would you to participate in this POLL “Which is the best JavaScript and Ajax Framework?”.
There are many JavaScript and Ajax framework available in the web and I think a lot of Web developers are confused which one to begin with. Today, I would like to hear from you which is the best JavaScript Framework among the popular JavaScript framework jquery, prototype.js, mootools, Dojo and YUI.
First let’s see some facts about these framework.If you look at the google trendof these JavaScript and Ajax framework Dojo seems to be dominant in the year 2007 but jQuery seems to be popular these days.
And if you look at this Slick speed selecter test , it seems that Mootools is providing better performance than the other JavaScript frameworks. Prototype.js is one of the oldest JavaScript and Ajax framework which is widely used in many high profile websites over the Internet. Furthermore, YUI which is supported by yahoo and is another strong framework in the list.
If you ask me which one is best JavaScript framework?, My personal favorite is jQuery as you can see lots of examples in this blog with jQuery. One plus point of jQuery is that it is supported by large community and have a very gooddocumentaion with example in jquery.com.
But I would like to hear from you which JavaScript and Ajax Framework you recommend for other to use in their project.
Which is the best JavaScript and Ajax framework?
Total Voters: 690
posted by: http://expertzweb.com
Tags: AJAX framework., javascript developement, javascript frameworkLast time, I had published a poll asking which is the best PHP framework and in that poll Zend Framework stand out itself to be the most popular PHP frameworkamong the PHP developers. This time ,I’ve come up with another Poll and I would you to participate in this POLL “Which is the best JavaScript and Ajax Framework?”.
There are many JavaScript and Ajax framework available in the web and I think a lot of Web developers are confused which one to begin with. Today, I would like to hear from you which is the best JavaScript Framework among the popular JavaScript framework jquery, prototype.js, mootools, Dojo and YUI.
First let’s see some facts about these framework.If you look at the google trendof these JavaScript and Ajax framework Dojo seems to be dominant in the year 2007 but jQuery seems to be popular these days.
And if you look at this Slick speed selecter test , it seems that Mootools is providing better performance than the other JavaScript frameworks. Prototype.js is one of the oldest JavaScript and Ajax framework which is widely used in many high profile websites over the Internet. Furthermore, YUI which is supported by yahoo and is another strong framework in the list.
If you ask me which one is best JavaScript framework?, My personal favorite is jQuery as you can see lots of examples in this blog with jQuery. One plus point of jQuery is that it is supported by large community and have a very gooddocumentaion with example in jquery.com.
But I would like to hear from you which JavaScript and Ajax Framework you recommend for other to use in their project.
Which is the best JavaScript and Ajax framework?
* jQuery (52%, 356 Votes)
* Dojo (14%, 99 Votes)
* Prototype.js (13%, 91 Votes)
* Ext.js (9%, 62 Votes)
* Mootools (7%, 47 Votes)
* YUI (Yahoo User Interface) (7%, 45 Votes)
posted by: http://expertzweb.com
Tags: AJAX examples, Javascrip, Javascript AJAX, javascript framework, Javascript UIJavascript can add a lot of special effects that can really improve the user’s experience. Here are 10 simple and clever Javascript techniques that add an extra dose of usability to any webpage.
Javascript is typically used as an aesthetic language in web development. This means that web developers should almost always be using Javascript for one thing only: Improving the visitor’s experience. There are many clever and useful ways to improve a site from the user interface perspective. A developer can find nearly any snippet of Javascript to achieve what he or she wants to accomplish.
Javascript is truly a powerful and easy language to learn. It can be used to perform simple, aesthetic functions like toggling an element. It can be used to power a dynamic email client, and even send data instantaneously. Javascript can be as simple or advanced as you want it to be.
A great place to find Javascript techniques that can improve your site’s functionality is by browsing Javascript frameworks and their plugins and documentation. Here are a few frameworks that have lots of resources, plugins, and communities behind them:
Frameworks are a blessing to any developer or designer who wants to quickly add Javascript effects to their layouts, without having to make raw code. Many of the techniques that we use below will run on Javascript frameworks like JQuery or MooTools.
It’s important to note that many of these features aren’t big and obnoxious, but rather small and subtle. Too often developers get carried away when it comes to adding Javascript. These are small but very useful techniques that can be used by almost any developer. You’ll also note that most of these features deal with cleverly hiding and showing important information in non-traditional ways.
The jQuery hover sub tag cloud is an excellent example of a simple piece of Javascript that really adds a nice, subtle touch to tag clouds. As the user hovers over a specific tag and it has sub-tags associated with it, a pop-up box appears and shows the sub-tags. Simple, yet effective.
Opacity Change is a little tutorial on how to use Scriptaculous to make an opacity change for an element.
Opacity changes are great for many different reasons: showing hovered content, showing content that has been clicked on, and many other useful functions.
Being able to crop photos after you upload them is a feature that more web applications could use. That’s why the jQuery image upload and crop is such an under-used Javascript technique. Cropping images is a much-needed function when it comes to uploading images, and many web applications could benefit from adding this useful feature.
Honestly, I think that nearly all image uploads could use a basic crop function. However, image cropping isn’t the easiest Javascript function to add to a form. It’s a somewhat involved process, using image libraries and Javascript. Using this script built on the jQuery framework can add a lot to the user’s experience without a bunch of extra code.
As hackers become smarter and larger in numbers, it’s becoming more and more important for site users to pick strong, non-guessable passwords that contain a combination of letters (upper and lower case), numbers and special characters. However, this task is easier said than done. Users typically don’t read directions if they can help it.
Visually showing password strength in registration forms is an excellent way to encourage users to make the passwords more challenging. While this is slowly becoming more common this simple technique is not used anywhere near as much as it should be.
The Password Strength Meter works off of prototype/scriptaculous and is a handy little script that shows the strength of the password with a colored meter in real-time. More sites need to implement this type of “safety” script to help users see the dangers of inputting weak passwords.
Magic Zoom is a highly-useful script for eCommerce sites, as well as other sites that have detailed images. Instead of having the user making an extra click to a much larger picture and use up bandwidth, Magic Zoom allows you to essentially look through a magnifying glass at each picture.
Magic Zoom is a paid script, but well worth the $47 if you have an eCommerce store or any other site that has very detailed photographs. You can download the trial version below.
Every single form on the Internet should have this feature. It might just be the perfectionist in me, but having multiple input forms that autotab to the next input automatically seems like it should be commonplace. It’s such a relief when filling out items like social security numbers when the input automatically tabs to the next input.
The jQuery Autotab script is self-explanatory, and does what the name implies: adds autotabs to forms with jQuery.
Sometimes it’s the small things in development that can really make a difference.
While we typically don’t like to toot our own horn at NETTUTS, how can we talk about clever and useful Javascripts without bringing up Connor Zwick’s awesome tutorial on how to build a useful login form?
The Javascript login form is an elegant combination of jQuery and a beautiful Photoshop layout to achieve the effect of being able to show a login form without having the box take up a bulk of the page. Digg is another great example of a site using Javascript to show and hide the login form.
Forms are some of the hardest parts of web design. Make a form too long and you might scare away a potential user or customer. If a form’s design is unattractive, that might scare away a potential user as well. Any way that we can make our web forms more appealing to the eye will yield a higher sign-up conversion rate.
The context highlighting web forms script is an excellent attribute to add to a signup form. It’s surprising that more forms don’t offer this functionality. Being able to quickly see the progress on a form can noticeably improve the user experience.
The Sliding Top Panel script is a lot like the Incredible Javascript Login Form. Hiding/Showing important information is a key to beautiful, usable designs. Any time we can use Javascript to help keep unneeded information neatly packed away, we should be striving to do that.
Site promotion buttons and links can quickly clutter a site or blog’s layout. It seems that if you want to promote your blog posts and other content on sites like Digg and Delicious, you have to add a long list of buttons to your template so that you don’t exclude anyone’s favorite social bookmarking or news site.
Social History comes in handy because it runs a test to see where the user has been recently, and loads images to those sites, and only those sites. Essentially, it’s only showing the visitor the buttons that they would want to see.
How does SocialHistory.js know? By using a cute information leak introduced by CSS. The browser colors visited links differently than non-visited links. All you have to do is load up a whole bunch of URLs for the most popular social bookmarking sites in an iframe and see which of those links are purple and which are blue.
posted by: http://expertzweb.com
Tags: Javascript UI, JQuery, Prototype examplesYou are currently browsing the Expertz weblog archives for the Prototype category.
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