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Anonymous classes in PHP 5.4+
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<?php | |
function new_($items = null, $extra = "") { | |
while (class_exists($name = "Anon".rand(), FALSE)) {}; | |
$class = | |
'class '.$name." ".$extra.PHP_EOL. | |
'{'.PHP_EOL. | |
' private $_fns = array();'.PHP_EOL. | |
' public function __construct($items) {'.PHP_EOL. | |
' foreach ($items ?: array() as $name => $value) {'.PHP_EOL. | |
' if (is_callable($value)) {'.PHP_EOL. | |
' $this->_fns[$name] = $value->bindTo($this, $this);'. PHP_EOL. | |
' } else {'.PHP_EOL. | |
' $this->$name = $value;'.PHP_EOL. | |
' }'.PHP_EOL. | |
' }'.PHP_EOL. | |
' }'.PHP_EOL; | |
foreach ($items as $key => $value) { | |
if (is_callable($value)) { | |
$class .= ' public function '.$key.'('; | |
$first = true; | |
foreach ($params = (new ReflectionFunction($value))->getParameters() as $param) { | |
if ($first) { $first = false; } else { $class .= ","; }; | |
$hint = $param->getClass() ? $param->getClass()->name : ""; | |
$class .= $hint.' $'.$param->getName(); | |
}; | |
$class .= ') { call_user_func_array($this->_fns["'.$key.'"], func_get_args()); }'.PHP_EOL; | |
} else { | |
$class .= ' public $'.$key.';'.PHP_EOL; | |
} | |
}; | |
eval($class."}"); | |
return new $name($items); | |
} | |
interface Test { | |
public function setA(DateTime $p); | |
} | |
$o = new_([ | |
'a' => new DateTime("2011-12-19"), | |
'setA' => function(DateTime $p) { $this->a = $p; } | |
], "implements Test"); | |
$o->setA(new DateTime()); |
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