Example analysis of PHP regular expression matching, replacement and segmentation functions

This article mainly introduces the PHP regular expression matching, replacement and segmentation functions, briefly analyzes the PHP regular expression matching, replacement and segmentation related functions, and demonstrates the related operation skills of PHP regular expression matching in the form of examples. Friends who need it can For reference,

is as follows:

The functions of regular expressions in PHP mainly include: segmentation, matching, search and replacement.

Matching function

preg_match_all All matching functions

##

preg_match_all (string pattern,string subject,array matches[, int flags]);

Replacement function

preg_replace Regular replacement function

preg_replace(mixed pattern,mixed replacement,mixed subject[, int limit]);

② The replacement content can be solved by using the modifier e to solve the replacement execution content.

Split function

preg_split Regular cutting

preg_split(string pattern,string subject[, int limit[, int flags]]);

Example demonstration

<?php
$str="标题：{title}内容：{content}";
$mode="/{(.*)}/U";
preg_match_all($mode,$str,$arr);
print_r($arr);
?>

Array
(
  [0] => Array
    (
      [0] => {title}
      [1] => {content}
    )
  [1] => Array
    (
      [0] => title
      [1] => content
    )
)

The most commonly used regular expressions in PHP

RegularExpressionDetailed explanation of statement comment steps

RegularUse of \B and \b in expression Detailed steps

The above is the detailed content of Example analysis of PHP regular expression matching, replacement and segmentation functions. For more information, please follow other related articles on the PHP Chinese website!