PHP preg_match Regular Expression function instance, Phppregmatch function _php Tutorial

PHP preg_match Regular Expression function instance, Phppregmatch function

Regular expressions are used in almost all programming languages, and this example introduces the application of the Preg_match function of the normal expression in PHP.

The Preg_match () function is used to match a regular expression, successfully returning 1, otherwise returning 0.
Preg_match () will stop the match once the match is successful, and if you want to match all results, use the Preg_match_all () function.

Grammar:

Preg_match (pattern, subject, matches)

Parameters	Describe
Pattern	Regular expressions
Subject	Objects that need to be matched for retrieval
Matches	Optional, storing an array of matching results

Instance:
This instance matches a string with a. And a space followed by an uppercase letter and can only match to J. Because the Preg_match () match will stop the match once, and no longer match.

 
  php$str= "Daniel J. Gross Catholic High School A. are a faith and family based community committed to developing CH Ristian leaders through educational excellence in the Marianist tradition. " ; if (preg_match("/[a-z"). /",$str,$matches)) {    print_r($matches);}? >

Output Result:

Array

Original address: http://www.manongjc.com/article/52.html

Related reading:

PHP Regular Expression function usage instance

PHP preg_match functions and PHP Preg_match_al functions L instances, methods, examples

PHP Preg_match_all () function Use instance

PHP preg_match Regular Expression function instance

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