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<?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), )); });
Output for 8.4.1 - 8.4.12
================================================================================ (1) string : 'foo' callable : false __invoke : false closure : false ================================================================================ (2) string : 'trim' callable : true __invoke : false closure : false ================================================================================ (3) string : '\\Potherca\\Example\\TypeHints\\Example::typeHintMissing' callable : true __invoke : false closure : false Fatal error: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, array given in /in/jqMtg:54 Stack trace: #0 /in/jqMtg(54): method_exists(Array, '__invoke') #1 [internal function]: {closure:/in/jqMtg:51}(Array, 4) #2 /in/jqMtg(51): array_walk(Array, Object(Closure)) #3 {main} thrown in /in/jqMtg on line 54
Process exited with code 255.
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.25
================================================================================ (1) string : 'foo' callable : false __invoke : false closure : false ================================================================================ (2) string : 'trim' callable : true __invoke : false closure : false ================================================================================ (3) string : '\\Potherca\\Example\\TypeHints\\Example::typeHintMissing' callable : true __invoke : false closure : false Fatal error: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, array given in /in/jqMtg:54 Stack trace: #0 /in/jqMtg(54): method_exists(Array, '__invoke') #1 [internal function]: Potherca\Example\TypeHints\{closure}(Array, 4) #2 /in/jqMtg(51): array_walk(Array, Object(Closure)) #3 {main} thrown in /in/jqMtg on line 54
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33
================================================================================ (1) string : 'foo' callable : false __invoke : false closure : false ================================================================================ (2) string : 'trim' callable : true __invoke : false closure : false ================================================================================ (3) string : '\\Potherca\\Example\\TypeHints\\Example::typeHintMissing' callable : true __invoke : false closure : false Fatal error: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, array given in /in/jqMtg:54 Stack trace: #0 /in/jqMtg(54): method_exists(Array, '__invoke') #1 [internal function]: Potherca\Example\TypeHints\{closure}(Array, 4) #2 /in/jqMtg(79): array_walk(Array, Object(Closure)) #3 {main} thrown in /in/jqMtg on line 54
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.25, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
================================================================================ (1) string : 'foo' callable : false __invoke : false closure : false ================================================================================ (2) string : 'trim' callable : true __invoke : false closure : false ================================================================================ (3) string : '\\Potherca\\Example\\TypeHints\\Example::typeHintMissing' callable : true __invoke : false closure : false ================================================================================ (4) array : array (0 => '\\Potherca\\Example\\TypeHints\\Example',1 => 'typeHintMissing',) callable : true __invoke : false closure : false ================================================================================ (5) array : array (0 => Potherca\Example\TypeHints\Example::__set_state(array()),1 => 'typeHintMissing',) callable : true __invoke : false closure : false ================================================================================ (6) object : Potherca\Example\TypeHints\Example::__set_state(array()) callable : true __invoke : true closure : false ================================================================================ (7) object : Closure::__set_state(array()) callable : true __invoke : true closure : true
Output for 5.3.0 - 5.3.29
================================================================================ (1) string : 'foo' callable : false __invoke : false closure : false Catchable fatal error: Argument 1 passed to Potherca\Example\TypeHints\Example::typeHintCallable() must be an instance of Potherca\Example\TypeHints\callable, string given, called in /in/jqMtg on line 60 and defined in /in/jqMtg on line 12
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_STRING in /in/jqMtg 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/jqMtg on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/jqMtg on line 3
Process exited with code 255.
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