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run code in 200+ php & hhvm versions
Bugs & Features
<?php function a(callable $callback) { } $r = new ReflectionFunction('a'); var_dump($r->getParameters(), $r->getParameters()[0]->isCallable(), $r->getParameters()[0]->getClass());
Output for 7.0.0 - 7.2.6
array(1) { [0]=> object(ReflectionParameter)#2 (1) { ["name"]=> string(8) "callback" } } bool(true) NULL
Output for 5.4.0 - 5.6.28
array(1) { [0]=> &object(ReflectionParameter)#2 (1) { ["name"]=> string(8) "callback" } } bool(true) NULL
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/9lalt on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/9lalt on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/9lalt on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/9lalt on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/9lalt on line 3
Process exited with code 255.