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  1. <?php
  2.  
  3. namespace /* global */ {
  4.  
  5.     function test() {
  6.         $images = [
  7.             '37539' => 'some.png'
  8.         ];
  9.         $expr = '(?<=\\{\\[image:)\d+(?=]})';
  10.         $text = '{[image:37539]}';
  11.         preg_match_all("~{$expr}~", $text, $m);
  12.         print_r($m);
  13.  
  14.         $expr = '\\{\\[image:(\d+)]}';
  15.         $result = preg_replace_callback(
  16.             "~{$expr}~",
  17.             function ($m) use($images) {
  18.                 return "<image src='{$images[$m[1]]}>'";
  19.             },
  20.             $text
  21.         );
  22.         var_dump($result);
  23.     }
  24.     test();
  25. }
Success #stdin #stdout 0.01s 52488KB
comments (?)
stdin 
Standard input is empty
stdout 
Array
(
    [0] => Array
        (
            [0] => 37539
        )

)
string(22) "<image src='some.png>'"
https://ideone.com/SVqk6t
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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