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@ 2020-11-05T21:09:55Z

<?php
class Test {
   public function callback() {}
}
class Test2 {
   public function set(callable $callback) {}
}

$callback = 'Test::callback';

var_dump(is_callable($callback));

$a = new Test2();
$a->set($callback);
?>

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_callable: documentation ( source)

preferences:dark modelive previewkey bindings

28.42 ms | 405 KiB | 5 Q