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run code in 300+ PHP versions simultaneously
<?php function foo(bool $bar) { return $bar === true; } foo(true); // returns true
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Catchable fatal error: Argument 1 passed to foo() must be an instance of bool, boolean given, called in /in/9tk07 on line 8 and defined in /in/9tk07 on line 3
Process exited with code 255.
Output for 5.1.1 - 5.1.6
Fatal error: Argument 1 passed to foo() must be an object of class bool, called in /in/9tk07 on line 8 and defined in /in/9tk07 on line 3
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/9tk07 on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an object of class bool in /in/9tk07 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/9tk07 on line 3
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 ')' in /in/9tk07 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/9tk07 on line 3
Process exited with code 255.

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