Tag list R

regular expression comments regular expression contains regular expression contains string regular expression datetime regular expression debugger regular expression decoder regular expression delimiter regular expression digits only regular expression documentation regular expression dot regular expression end of line regular expression engine regular expression escape regular expression escape characters regular expression escape sequence regular expression exclamation mark regular expression exclude character regular expression exclude string regular expression exclude word regular expression extract string regular expression file extension regular expression find and replace regular expression find replace regular expression find string regular expression find word in string regular expression first occurrence regular expression flags regular expression float regular expression for decimal number with 2 precision regular expression for email in php regular expression for email validation in php regular expression for http url regular expression for integer only regular expression for name regular expression for name validation in php regular expression for negative numbers regular expression for numeric value regular expression for only numbers regular expression for unicode characters regular expression function in php regular expression functions regular expression functions in php regular expression grammar regular expression greedy regular expression ignore case regular expression info regular expression interpreter regular expression inverse regular expression last match regular expression lazy regular expression length regular expression less than regular expression literal regular expression look ahead regular expression lookbehind regular expression m regular expression match all regular expression match everything regular expression match file extension regular expression match multiple strings regular expression match substring regular expression match word in string regular expression matching regular expression matching in perl regular expression math regular expression metacharacters regular expression modifiers regular expression multiple lines regular expression not greedy regular expression number of occurrences regular expression numeric only regular expression object regular expression online php regular expression or pattern regular expression p regular expression pattern regular expression pattern matching examples regular expression quantifier regular expression quick reference regular expression quote regular expression reference regular expression reference card regular expression remove characters regular expression remove html tags regular expression replace regular expression replace example regular expression replace space regular expression replace string regular expression rules regular expression search and replace regular expression special characters regular expression split string regular expression string regular expression string contains regular expression string length regular expression substitution regular expression substitution examples regular expression syntax regular expression table regular expression text