regex.inc

Function	Type	Description
regex_compile	native	Precompile a regular expression.
regex_compile_ex	native	Precompile a regular expression.
regex_free	native	Frees the memory associated with a regex result, and sets the handle to 0.
regex_match	native	Matches a string against a regular expression pattern.
regex_match_all	native	Matches a string against a regular expression pattern, matching all occurrences of the pattern inside the string. This is similar to using the "g" flag in perl regex.
regex_match_all_c	native	Matches a string against a pre-compiled regular expression pattern, matching all occurrences of the pattern inside the string. This is similar to using the "g" flag in perl regex.
regex_match_c	native	Matches a string against a pre-compiled regular expression pattern.
regex_replace	native	Perform a regular expression search and replace. An optional parameter, flags, allows you to specify options on how the replacement is performed. Supported format specifiers for replace parameter: $number : Substitutes the substring matched by group number. n must be an integer value designating a valid backreference, greater than 0, and of two digits at most. ${name} : Substitutes the substring matched by the named group name (a maximum of 32 characters). $& : Substitutes a copy of the whole match. $` : Substitutes all the text of the input string before the match. $' : Substitutes all the text of the input string after the match. $+ : Substitutes the last group that was captured. $_ : Substitutes the entire input string. $$ : Substitutes a literal "$". As note, the character \ can be also used with format specifier, this is same hehavior as $.
regex_substr	native	Returns a matched substring from a regex handle.
regex_match_simple	stock	Matches a string against a regular expression pattern.