3v4l.org

run code in 300+ PHP versions simultaneously
<?php class parent { public function __construct($x=1, $y=2) { } } class child extends parent { public function __construct($x, $y) { parent::__construct(); } }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.42, 5.5.24 - 5.5.26, 5.6.7 - 5.6.10
Fatal error: Cannot use 'parent' as class name as it is reserved in /in/3sMtY on line 4
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/3sMtY 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/3sMtY 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/3sMtY on line 5
Process exited with code 255.
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