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  1. <?php
  2.  
  3. $str = "[albums album_id='41']";
  4. $regex = '/^\[albums album_id=\'([0-9]*)\']$/';
  5. if (preg_match($regex, $str, $matches)) {
  6.     echo $str . " is a valid album ID. ID = " . $matches[1];
  7. } else {
  8.     echo $str . " is an invalid ablum ID. Please try again.";
  9. }
Success #stdin #stdout 0s 52488KB
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[albums album_id='41'] is a valid album ID. ID = 41
https://ideone.com/mvUK4s
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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