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  1. <?php
  2.  
  3. preg_match('/^(?|([1-5])|([1-5]) .*|.* ([1-5])|.* ([1-5]) .*)$/', 'order 12314124 5', $matches);
  4. print_r($matches[1]);
Success #stdin #stdout 0.03s 52480KB
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Standard input is empty
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5
https://ideone.com/ovEDCd
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
secret

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