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run code in 300+ PHP versions simultaneously
<?php //$foo()() //class foo { static function bar(){ return 'bar'; }} function bar() { echo 'bazz'; } $foo = 'foo'; echo 'string'->strtoupper(); //echo $foo()[0];
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 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: Call to a member function strtoupper() on string in /in/XMjBZ:6 Stack trace: #0 {main} thrown in /in/XMjBZ on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Parse error: syntax error, unexpected '->' (T_OBJECT_OPERATOR), expecting ',' or ';' in /in/XMjBZ on line 6
Process exited with code 255.

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