php pattern mathing related question

Pattern Modifiers -- Describes possible modifiers in regex patterns

Pattern Syntax -- Describes PCRE regex syntax

preg_grep -- Return array entries that match the pattern

preg_match_all -- Perform a global regular expression match

preg_match -- Perform a regular expression match

preg_quote -- Quote regular expression characters

preg_replace_callback -- Perform a regular expression search and replace using a callback

preg_replace -- Perform a regular expression search and replace

preg_split -- Split string by a regular expression



ereg_replace -- Replace regular expression

ereg -- Regular expression match

eregi_replace -- Replace regular expression case insensitive

eregi -- Case insensitive regular expression match

split -- Split string into array by regular expression

spliti -- Split string into array by regular expression case insensitive

sql_regcase -- Make regular expression for case insensitive match