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<?php trait Blah { function getOne() { return 1;} } abstract class AbstractTest { use Blah; } class Test extends AbstractTest {} function hier($class) { $traits = class_uses($class) ?: []; $parents = class_parents($class) ?: []; foreach ($parents as $parent) { array_merge($traits, hier($parent)); } return $traits; } $t = new Test; echo $t->getOne() . "\n"; var_dump(hier($t::class));
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18, 8.3.0 - 8.3.6
1 array(0) { }
Output for 5.4.0 - 5.4.31
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/JG1Ef on line 29
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, 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING in /in/JG1Ef 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_STRING in /in/JG1Ef on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/JG1Ef on line 3
Process exited with code 255.
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