3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function decorate(array $decorators, callable $fn, array $arguments = array()) { foreach (array_reverse($decorators) as $decorator) { if (is_callable($decorator)) { $fn = $decorator($fn); } } return call_user_func_array($fn, $arguments); } function expects(/* $type,... */) { $types = func_get_args(); $decorator = function(callable $fn) use ($types) { $wrapper = function() use ($fn, $types) { foreach (func_get_args() as $i => $arg) { if (($type = gettype($arg)) !== $types[$i] and isset($types[$i]) and $types[$i] !== 'mixed') { throw new \InvalidArgumentException("Expected type of argument $i to be {$types[$i]}, got $type"); } } return call_user_func_array($fn, func_get_args()); }; return $wrapper; }; return $decorator; } function returns($type) { $decorator = function($fn) use ($type) { $wrapper = function() use ($fn, $type) { $returnValue = call_user_func_array($fn, func_get_args()); if (($returnType = gettype($returnValue)) !== $type) { throw new \UnexpectedValueException("Expected return type $type, got $returnType"); } return $returnValue; }; return $wrapper; }; return $decorator; } function bar() { return decorate( [ expects('int'), returns('string') ], function($foo) { return "foo"; }, func_get_args() ); } bar();
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 0 passed in /in/k3E3C on line 39 and exactly 1 expected in /in/k3E3C:61 Stack trace: #0 /in/k3E3C(39): {closure}() #1 /in/k3E3C(26): {closure}() #2 /in/k3E3C(11): {closure}() #3 /in/k3E3C(63): decorate(Array, Object(Closure), Array) #4 /in/k3E3C(68): bar() #5 {main} thrown in /in/k3E3C on line 61
Process exited with code 255.
Output for 7.0.0 - 7.0.14
Warning: Missing argument 1 for {closure}(), called in /in/k3E3C on line 39 and defined in /in/k3E3C on line 61
Output for hhvm-3.12.0
Warning: __invoke() expects exactly 1 parameter, 0 given in /in/k3E3C on line 62
Output for 5.4.0 - 5.6.28
Warning: Missing argument 1 for {closure}() in /in/k3E3C on line 61
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/k3E3C on line 57
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/k3E3C on line 18
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/k3E3C on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/k3E3C 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_ARRAY, expecting ')' in /in/k3E3C on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/k3E3C on line 3
Process exited with code 255.