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  1. <?php
  2.  
  3.   $msg="Dear [[5]] We wish to continue the lesson with the [[6]]";
  4.  
  5.   preg_match_all("/\[\[(\d+)\]\]/", $msg, $matches);
  6.   print_r($matches[1]);
  7. ?>
Success #stdin #stdout 0.02s 13064KB
comments (?)
stdin 
Standard input is empty
stdout 
Array
(
    [0] => 5
    [1] => 6
)
https://ideone.com/52Xxh
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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