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<?php $input = 'S1G5AB'; // given this $store = '5I6GAB'; // actually this $chars = explode('', $input); var_dump($chars); $regex = str_replace(['S','5','G','6','1','I'], ['[S5]','[S5]','[G6]','[G6]','[I1]','[I1]'], $input); echo $regex; echo (0 < preg_match("/$regex/", $store) ? 'Match' : 'No match');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ValueError: explode(): Argument #1 ($separator) cannot be empty in /in/hBd7u:5 Stack trace: #0 /in/hBd7u(5): explode('', 'S1G5AB') #1 {main} thrown in /in/hBd7u on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: explode(): Empty delimiter in /in/hBd7u on line 5 bool(false) [S[S5]][[I1]1][G[G6]][S5]ABNo match
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/hBd7u on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/hBd7u on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/hBd7u on line 7
Process exited with code 255.
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