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  1. <?php
  2.  
  3. $re = '/t(?!h(?:e|is))/i';
  4.  
  5. if (preg_match($re,'The cat and the dog are hungry'))
  6.     echo 'true';
  7. else
  8.     echo 'false';
  9. echo "\n";
  10. if (preg_match($re,'The lion and dog are hungry'))
  11.     echo 'true';
  12. else
  13.     echo 'false';
Success #stdin #stdout 0.01s 52488KB
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stdin
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Standard input is empty
stdout
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true
false
https://ideone.com/qz97ia
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
secret

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