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run code in 300+ PHP versions simultaneously
<?php class foo { function bar() { echo "this is " . (!empty($this) && !is_null($this) ? 'not ' : '') . "null\n"; } } foo::bar(); (new foo)->bar();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Non-static method foo::bar() cannot be called statically in /in/pBuQd:8 Stack trace: #0 {main} thrown in /in/pBuQd on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Non-static method foo::bar() should not be called statically in /in/pBuQd on line 8 this is null this is not null
Output for 7.3.32 - 7.3.33
this is null this is not null
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Strict Standards: Non-static method foo::bar() should not be called statically in /in/pBuQd on line 8 this is null this is not null

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