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run code in 300+ PHP versions simultaneously
<?php $string_source = 'blabla[Sun][Sun]blabla[Moon][Moon][Moon]blabla[Sun][Sun][Sun][Sun]blabla[Venus]'; $string_source = preg_replace_callback('/(\[[^\[\]]+\])+/', function($matches) { return $matches[1].'['.(strlen($matches[0])/strlen($matches[1])).']'; }, $string_source); var_dump($string_source);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
string(59) "blabla[Sun][2]blabla[Moon][3]blabla[Sun][4]blabla[Venus][1]"
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/Ha8Yr on line 5
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/Ha8Yr on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Ha8Yr on line 5
Process exited with code 255.
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167.53 ms | 409 KiB | 5 Q