PHP反射机制用法实例

演示示例代码如下所示：

<?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(); ?>

输出结果：

In Class One

可见，通过代理类ClassOneDelegator来代替ClassOne类来实现他的方法。

同样的，如下的代码也是能够运行的：

<?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(); ?>