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run code in 300+ PHP versions simultaneously
<?php class Foo extends DateTime { function add(DateInterval $interval){ parent::add($interval); } }
Output for 5.2.0 - 5.2.17, 8.0.0 - 8.0.8
Output for 7.4.0 - 7.4.22
Warning: Declaration of Foo::add(DateInterval $interval) should be compatible with DateTime::add($interval) in /in/oh0uT on line 4
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.29
Warning: Declaration of Foo::add(DateInterval $interval) should be compatible with DateTime::add($interval) in /in/oh0uT on line 5
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: Declaration of Foo::add() should be compatible with DateTime::add($interval) in /in/oh0uT on line 5
Output for 5.3.0 - 5.3.29
Strict Standards: Declaration of Foo::add() should be compatible with that of DateTime::add() in /in/oh0uT on line 5
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/oh0uT on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/oh0uT on line 4
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/oh0uT on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/oh0uT on line 4
Process exited with code 255.

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