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  1. <?php
  2.  
  3. $pattern = '/form_[0-9]+\/display/';
  4. $field = 'form_157/display';
  5.  
  6. echo preg_match($pattern, $field) ? "Co" : "Ko";
Success #stdin #stdout 0.02s 26000KB
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Standard input is empty
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Co
https://ideone.com/3pUNE0
language:
PHP (php 7.3.5)
created:
4 days ago
visibility:
public

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