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  1. <?php
  2.  
  3. $input1 = <<<__EOT
  4. <!-- comments disabled -->
  5. <!-- comments enabled --> 
  6. __EOT;
  7.  
  8. $input2 = <<<__EOT
  9. <!-- comments enabled --> 
  10. <!-- comments disabled -->
  11. __EOT;
  12.  
  13. function commentsEnabled($str){
  14. 	preg_match_all('/^.*?<!--\s*comments\s+(en|dis)abled\s*-->.*$/m', $str, $m);
  15. 	return !count($m[1]) ? null : array_pop($m[1]) == 'en';
  16. }
  17.  
  18. if(commentsEnabled($input1)===true) echo "yay\n";
  19. if(commentsEnabled($input2)!==true) echo ':(';
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin 
Standard input is empty
stdout 
yay
:(
https://ideone.com/uot3xU
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
secret

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