Complete url matching with storage of various parameters

For Validating alphanumeric and numeric range

Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php

A string with only numbers in

Capture comma separated numbers, no matter if there are spaces before or after the commas.

From a (fairly large) list of User Agent strings, extract the OS, Browser, and Device Type.

{1:aa,2:bb,3:"aa:bb"}

Check for true or false street address format

this regex is support for all languages

By Using this string you can just remove ascii special characters from a unicode string characters like ♥♥♥♥ ▓▒ and other non unicode letters.

Matches IP Addresses with minimum false positives

Simple regular expression for extracting attribute value of the element in XML-string. Attribute value should be in quotes.

This regex is used to remove HTML tag on string