3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class aaa{ private $a; private $b; public function add(){ echo '123123'; } } $abc=new aaa(); $this->$add(); ?>
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: add in /in/avcF6 on line 11 Fatal error: Uncaught Error: Method name must be a string in /in/avcF6:11 Stack trace: #0 {main} thrown in /in/avcF6 on line 11
Process exited with code 255.
Output for 5.0.4 - 5.6.28
Notice: Undefined variable: add in /in/avcF6 on line 11 Fatal error: Method name must be a string in /in/avcF6 on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: add in /in/avcF6 on line 11 Fatal error: Method name must be a string in /in/avcF6 on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/avcF6 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/avcF6 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/avcF6 on line 3
Process exited with code 255.