PHP反射機制實現動態代理的程式碼
阿新 • • 發佈:2019-02-04
http://www.php100.com/html/webkaifa/PHP/PHPyingyong/2008/1216/139.html演示用程式碼如下所示: <?php class ClassOne { function callClassOne() { print "In Class One"; } } class ClassOneDelegator { private $targets; function __construct() { $this->target[] = new ClassOne(); } function __call($name, $args) { foreach ($this->target as $obj) { $r = new ReflectionClass($obj); if ($method = $r->getMethod($name)) { if ($method->isPublic() && !$method->isAbstract()) { return $method->invoke($obj, $args); } } } } } $obj = new ClassOneDelegator(); $obj->callClassOne(); ?> 輸出結果: In Class One 可見,通過代理類ClassOneDelegator來代替ClassOne類來實現他的方法。 同樣的,如下的程式碼也是能夠執行的: <?php class ClassOne { function callClassOne() { print "In Class One"; } } class ClassOneDelegator { private $targets; function addObject($obj) { $this->target[] = $obj; } function __call($name, $args) { foreach ($this->target as $obj) { $r = new ReflectionClass($obj); if ($method = $r->getMethod($name)) { if ($method->isPublic() && !$method->isAbstract()) { return $method->invoke($obj, $args); } } } } } $obj = new ClassOneDelegator(); $obj->addObject(new ClassOne()); $obj->callClassOne(); ?>