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Perl compatible formal expression function library: Preg_replace

Source: Internet
Author: User
Keywords Perl compatibility PHP Chinese function Manual preg_replace regular expression function library
Tags aliyun content data data processing expression function function library html
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Preg_replace

String pairs are parsed and replaced.

Grammar: Mixed preg_replace (mixed pattern, mixed replacement, mixed subject);

Return value: Mixed type data

Function type: Data processing
&http://www.aliyun.com/zixun/aggregation/37954.html ">NBSP;
Content Description

This function resolves the string subject by the rules of pattern, and the string to be replaced is replacement. The return value is mixed type data, which is the substituted string result.

Usage examples

The following example returns a value of $startDate = 6/19/1969

<?php
$patterns = Array ("/(19|20\d{2})-(\d{1,2})-(\d{1,2})/", "/^\s*{(w)}\s*=/");
$replace = Array ("\\3/\\4/\\1", "$\\1 =");
Print Preg_replace ($patterns, $replace, "{startdate} = 1969-6-19");
?>

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