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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)) {
  6.     echo $str . " is a valid album ID.";
  7. } else {
  8.     echo $str . " is an invalid ablum ID. Please try again.";
  9. }
Success #stdin #stdout 0s 52488KB
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Standard input is empty
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[albums album_id='41'] is a valid album ID.
https://ideone.com/GmL7WL
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
secret

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