3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo preg_replace("#_([a-z])#",function($r){ return ucfirst($r); },'abc_def_ghj');
based on SHrXc
Output for 7.1.0
Recoverable fatal error: Object of class Closure could not be converted to string in /in/mj0ZJ on line 5
Process exited with code 255.
Output for 5.3.0 - 5.6.21, 7.0.0 - 7.0.14
Catchable fatal error: Object of class Closure could not be converted to string in /in/mj0ZJ on line 5
Process exited with code 255.
Output for hhvm-3.12.0
Catchable fatal error: Object of class Closure$;583985144$2dc74f281a00119d92cdceee9cb8c153$ could not be converted to string in /in/mj0ZJ on line 5
Process exited with code 255.
Output for hhvm-3.10.0
Catchable fatal error: Object of class Closure$;583985144$b7bcb5fc308fb920a38fc7f22d514589$ could not be converted to string in /in/mj0ZJ on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/mj0ZJ on line 3
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/mj0ZJ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/mj0ZJ on line 3
Process exited with code 255.