3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_replace_callback( '~\[admin(.+?)\[/admin\]~is', function($m) { return '[admin' . strtr(un_htmlspecialchars($m[1]), array("\n" => '&#13;', ' ' => ' &#32;')) . '[/admin]'; }, '[admin]test[/admin]' );
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function un_htmlspecialchars() in /in/Yba2U:5 Stack trace: #0 [internal function]: {closure}(Array) #1 /in/Yba2U(7): preg_replace_callback('~\\[admin(.+?)\\[...', Object(Closure), '[admin]test[/ad...') #2 {main} thrown in /in/Yba2U on line 5
Process exited with code 255.
Output for 5.3.0 - 5.6.28, hhvm-3.12.0
Fatal error: Call to undefined function un_htmlspecialchars() in /in/Yba2U on line 5
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/Yba2U on line 4
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
Parse error: parse error, unexpected T_FUNCTION in /in/Yba2U on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Yba2U on line 4
Process exited with code 255.