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<?php $str = 'Hello, World!!!'; $res1 = preg_replace('/ll/', '?', $str); var_dump($res1); $res2 = preg_replace_callback('/ll/', function ($matches) {return '?';}, $str); var_dump($res2); function test($arg[0]) { var_dump($arg); } test($str);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.35
Parse error: syntax error, unexpected '[', expecting ')' in /in/iCP77 on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/iCP77 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 T_FUNCTION in /in/iCP77 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/iCP77 on line 7
Process exited with code 255.
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213.22 ms | 1395 KiB | 125 Q