3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function foo(string $foo) { echo $foo; } foo(1); foo('hi');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: foo(): Argument #1 ($foo) must be of type string, int given, called in /in/vi5Ek on line 9 and defined in /in/vi5Ek:5 Stack trace: #0 /in/vi5Ek(9): foo(1) #1 {main} thrown in /in/vi5Ek on line 5
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to foo() must be of the type string, int given, called in /in/vi5Ek on line 9 and defined in /in/vi5Ek:5 Stack trace: #0 /in/vi5Ek(9): foo(1) #1 {main} thrown in /in/vi5Ek on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Fatal error: Uncaught TypeError: Argument 1 passed to foo() must be of the type string, integer given, called in /in/vi5Ek on line 9 and defined in /in/vi5Ek:5 Stack trace: #0 /in/vi5Ek(9): foo(1) #1 {main} thrown in /in/vi5Ek on line 5
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/vi5Ek on line 3 Catchable fatal error: Argument 1 passed to foo() must be an instance of string, integer given, called in /in/vi5Ek on line 9 and defined in /in/vi5Ek on line 5
Process exited with code 255.

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