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run code in 150+ php & hhvm versions
Bugs & Features
<?php // Everything you enter here will be executed by our servers. Try it! error_reporting(E_ALL); class AA { public function x($a) { $a = $b; } } class BB extends AA { public function x($a, $b) { return parent::x($a); } } $b = new BB(); $b->x(1, 2);
Output for 7.0.0 - 7.1.0
Warning: Declaration of BB::x($a, $b) should be compatible with AA::x($a) in /in/WoM6b on line 21 Notice: Undefined variable: b in /in/WoM6b on line 10
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: b in /in/WoM6b on line 10
Output for 5.4.0 - 5.6.28
Strict Standards: Declaration of BB::x() should be compatible with AA::x($a) in /in/WoM6b on line 21 Notice: Undefined variable: b in /in/WoM6b on line 10
Output for 5.0.4 - 5.3.29
Strict Standards: Declaration of BB::x() should be compatible with that of AA::x() in /in/WoM6b on line 21 Notice: Undefined variable: b in /in/WoM6b on line 10
Output for 5.0.0 - 5.0.3
Strict Standards: Declaration of BB::x() should be compatible with that of AA::x() in /in/WoM6b on line 21 Notice: Undefined variable: b in /in/WoM6b on line 10
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/WoM6b on line 8
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/WoM6b on line 8
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/WoM6b on line 8
Process exited with code 255.