3v4l.org

run code in 300+ PHP versions simultaneously
<?php $anonymous = new class () {}; class_alias($anonymous::class, \array::class); function foo(\array $object) : \array { var_dump($object); return $object; } foo($anonymous); /* object(class@anonymous)#1 (0) { } */ ?>
Output for 8.5.0 - 8.5.3
Fatal error: Cannot use "array" as a type name as it is reserved in /in/M4jeA on line 7 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
object(class@anonymous)#1 (0) { }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Parse error: syntax error, unexpected 'array' (T_ARRAY), expecting identifier (T_STRING) in /in/M4jeA on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/M4jeA on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CLASS in /in/M4jeA on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/M4jeA on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/M4jeA on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `'$'' in /in/M4jeA on line 3
Process exited with code 255.

preferences:
73.43 ms | 2719 KiB | 4 Q