Simple usage example of preg_replace_callback function in PHP

This example describes the use of Preg_replace_callback functions in PHP. Share to everyone for your reference, as follows:

Mixed Preg_replace_callback (mixed pattern, callback callback, mixed subject [, int limit])

This function behaves almost like preg_replace (), except that it does not provide a replacement parameter, but instead specifies a callback function. The function takes the matching array in the target string as an input parameter and returns a string for substitution.

For example, the problem:

Preg_replace ($skx, $imsz 2, $neirong);

For example: There are multiple $skx in the $neirong I need to get a different ID every time I replace

Example:

<?php$str= ' This was a test for this string includes many this '; $replace = '/this/x '; $result =preg_replace_callback (  $replace,  function ($ms) {   static $i;   $i = $i +1;   Return "That ($i)"  },  $str); Echo $result, "/n";

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