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run code in 150+ php & hhvm versions
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<?php $str = "oAA34Ao#\\\\oo(+--)o/"; preg_replace_callback( '/([\x00-\x1F\*\(\)\\\\])/', function ($matches) { print_r($matches); $x = "\\".join("", unpack("H2", $matches[1])); echo $x; return $x; }, $str ); $str = " oAA34Ao#\\(\oo+--)o/"; function matches($matches) { print_r($matches); $x = "\\".join("", unpack("H2", $matches[1])); echo $x; return $x; } mb_ereg_replace_callback( '([\x00-\x1F\*\(\)\\\\])', "matches", $str ); ?>
Output for 5.4.1 - 5.6.28, 7.0.0 - 7.1.0
Array ( [0] => \ [1] => \ ) \5cArray ( [0] => \ [1] => \ ) \5cArray ( [0] => ( [1] => ( ) \28Array ( [0] => ) [1] => ) ) \29Array ( [0] => \ [1] => \ ) \5cArray ( [0] => ( [1] => ( ) \28Array ( [0] => \ [1] => \ ) \5cArray ( [0] => ) [1] => ) ) \29
Output for hhvm-3.10.0 - 3.12.0
Array ( [0] => \ [1] => \ ) \5cArray ( [0] => \ [1] => \ ) \5cArray ( [0] => ( [1] => ( ) \28Array ( [0] => ) [1] => ) ) \29 Fatal error: Call to undefined function mb_ereg_replace_callback() in /in/VlDhe on line 27
Process exited with code 255.
Output for 5.3.0 - 5.4.0
Array ( [0] => \ [1] => \ ) \5cArray ( [0] => \ [1] => \ ) \5cArray ( [0] => ( [1] => ( ) \28Array ( [0] => ) [1] => ) ) \29 Fatal error: Call to undefined function mb_ereg_replace_callback() in /in/VlDhe on line 23
Process exited with code 255.
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/VlDhe on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION in <b>/in/VlDhe</b> on line <b>7</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION in <b>/in/VlDhe</b> on line <b>7</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/VlDhe</b> on line <b>7</b><br />
Process exited with code 255.