Online PHP editor | refs for jqMtg

<?php namespace Potherca\Example\TypeHints; class Example { public static function typeHintMissing($subject) { return $subject; } public static function typeHintCallable(callable $subject) { return $subject; } public static function typeHintClosure(\Closure $subject) { return $subject; } public function __invoke($subject) { return $subject; } } $output = <<<'TXT' ================================================================================ (%d) %s : %s callable : %s __invoke : %s closure : %s TXT; $example = new Example(); $callables = array( 1 => 'foo', 2 => 'trim', 3 => '\Potherca\Example\TypeHints\Example::typeHintMissing', 4 => array('\Potherca\Example\TypeHints\Example', 'typeHintMissing'), 5 => array($example, 'typeHintMissing'), 6 => $example, 7 => function ($subject) {return $subject;}, ); array_walk($callables, function ($callable, $key) use ($output) { $is_callable = is_callable($callable); $is_invoke = method_exists($callable, '__invoke'); $is_closure = $callable instanceof \Closure; if ($is_callable === true) { /** @noinspection VariableFunctionsUsageInspection */ call_user_func($callable, 'foo'); Example::typeHintCallable($callable); } if ($is_closure === true) { Example::typeHintClosure($callable); } if ($is_invoke === true) { $callable('foo'); } vprintf($output, array( 'key' => $key, 'type' => gettype($callable), 'value' => str_replace(array("\n", ' '), '', var_export($callable, true)), 'is_callable' => var_export($is_callable, true), 'is_invoke' => var_export($is_invoke, true), 'is_closure' => var_export($is_closure, true), )); });