All regexes first get combined into a single big disjunction. Then, for each match, the matching sub-regex is determined from a group name and the match object dispatched to a corresponding method, or simply replaced by a string.
A regular expression (regex) is a pattern that can be used to match a string of text. They are a standard feature of many programming languages that are used for text-processing purposes (and they have the inconvenient habit of being implemented ever-so-slightly differently in different languages).
String Tools: word count, character count, md5, sh1, conver to upper case and lower case base 64 encode, base 64 decode, regular expressions, pattern, htmlentities
ReReplace.com is an online utility for running find/replace routines on blocks of text (or code). Utilizing the php preg functions, it fully supports regular expressions. Queries can be saved for reuse.
