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<?php class CallableByName { private $closure; public function __construct(\Closure $closure) { $this->closure = $closure; } public function invoke(array $parameters) { return call_user_func($this->closure, $this->getOrderedFromNamed($parameters)); } public function getOrderedFromNamed(array $parameters) { $orderedParameters = []; $functionReflection = new \ReflectionFunction($this->getClosure()); foreach ($functionReflection->getParameters() as $parameterReflection) { /* @var $parameterReflection \ReflectionParameter */ $parameterName = $parameterReflection->getName(); if (isset($parameters[$parameterName])) { $orderedParameters[$parameterName] = $parameters[$parameterName]; continue; } if ($parameterReflection->isDefaultValueAvailable()) { $orderedParameters[$parameterName] = $parameterReflection->getDefaultValue(); continue; } $orderedParameters[$parameterName] = null; } return $orderedParameters; } } $callableByName = new CallableByName(function($foo, $bar, $qux = 'Holy Qux!', $zip = null) { var_dump(get_defined_vars()); }); $callableByName->invoke([ 'bar' => 'Hello', 'foo' => 'World', ]);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Call to undefined method CallableByName::getClosure() in /in/i3uCo:21 Stack trace: #0 /in/i3uCo(15): CallableByName->getOrderedFromNamed(Array) #1 /in/i3uCo(48): CallableByName->invoke(Array) #2 {main} thrown in /in/i3uCo on line 21
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught Error: Call to undefined method CallableByName::getClosure() in /in/i3uCo:21 Stack trace: #0 /in/i3uCo(15): CallableByName->getOrderedFromNamed(Array) #1 /in/i3uCo(49): CallableByName->invoke(Array) #2 {main} thrown in /in/i3uCo on line 21
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Call to undefined method CallableByName::getClosure() in /in/i3uCo on line 21
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/i3uCo on line 20
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/i3uCo on line 8 Parse error: syntax error, unexpected '[' in /in/i3uCo on line 20
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/i3uCo on line 8 Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/i3uCo on line 13
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/i3uCo on line 6
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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/i3uCo on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/i3uCo on line 6
Process exited with code 255.
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