regular expression match multiple strings

Special characters in regular expressions Character implication \ As a turn, that is, the characters usually after "\" are not interpreted in the original sense, such as the/b/matching character "B", when B is preceded by a backslash/\b/, to

Replace () is a simple replacement of characters. ExampleCodeAs follows: It only replaces the first letter. However, if you add a regular expression, the results will be different! Replace () supports regular expressions. It can match

// Check whether it is composed of digits[Code] function isDigit (s) {var patrn =/^ [0-9] {1, 20} $/; if(! Patrn.exe c (s) return false return true} [/code] // Check Logon Name: You can enter only 5-20 strings starting with a letter, which can

The checksum is all made up of numbers Funtin Isigit (s) {var patrn=/^[0-9]{1,20}$/; if (!patrn.x (s)) Rturn Fals Rturn Tru} Javasript Form validation mail to determine whether an input is mailbox mail and implemented through regular expressions.

The regular expression of JSWhether the checksum is all made up of numbersCodefunction IsDigit (s){var patrn=/^[0-9]{1,20}$/;if (!patrn.exec (s)) return falsereturn True}Check login name: Only 5-20 entries begin with a letter, can be numbered, "_", "

The regular expression is a regular expression. It seems that English is better understood than Chinese, that is, the regular expression is checked for non-conforming characters !! Regular expressions have a powerful and complex object RegExp, which

PHP preg_replace () Regular replacement, unlike JavaScript regular substitution, PHP preg_replace () is the default is to replace all symbol matching conditions of the elements need our program processing data is not always pre-designed database

The regular expression is a regular expression. It seems that English is better understood than Chinese, that is, checking expression charactersNot compliant !! Regular expressions have a very powerful and complex object Regexp. In javascript1.2.Let'

The data that needs to be processed by a program is not always designed in advance by database thinking, or cannot be stored using the database structure.For example, the template engine parses templates and filters sensitive junk information.In

PHP regular expression full manual, regular expression full manual Php regular expression full manual Preface Regular Expressions are cumbersome, but they are powerful. The application after learning will give you an absolute sense of accomplishment