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  1. <?php
  2.  
  3. function test($re1, $re2) {
  4.         if (preg_match($re1,$re1)) {
  5.                 echo "$re1 self-matches\n";
  6.         }
  7.         if (preg_match($re2,$re2)) {
  8.                 echo "$re2 self-matches\n";
  9.         }
  10.  
  11.         if (preg_match($re1, $re2) && preg_match($re2, $re1)) {
  12.                 echo "$re1 and $re2 works\n";
  13.         }
  14.         else echo "$re1 and $re2 doesn't work\n";
  15. }
  16.  
  17. test('/A$/', '/.A/A');
  18.  
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin
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Standard input is empty
stdout
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/A$/ and /.A/A works
https://ideone.com/iHaQrv
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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