3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { protected $test = '1'; public function __construct(){ $a = function(){ var_dump($this); }; $a(); } public function xx(callback){ callback(); } } $a = new X(); $a->xx(function(){ var_dump($this); });
Output for 5.6.8 - 5.6.12
Parse error: syntax error, unexpected ')', expecting variable (T_VARIABLE) in /in/RDFdY on line 17
Process exited with code 255.
Output for 5.4.0 - 5.4.44, 5.5.24 - 5.5.28
Parse error: syntax error, unexpected ')', expecting '&' or variable (T_VARIABLE) in /in/RDFdY on line 17
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected ')', expecting '&' or T_VARIABLE in /in/RDFdY on line 17
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/RDFdY on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/RDFdY on line 9
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/RDFdY 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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/RDFdY on line 5
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/RDFdY on line 5
Process exited with code 255.

preferences:
239.28 ms | 1395 KiB | 144 Q