Bootstrap 的运行初始化

利用 Zend Framework 编程，个人一般偏爱以下方式作为程序入口，而不用完全自己组装

abstract class Zend_Application_Bootstrap_BootstrapAbstract    implements Zend_Application_Bootstrap_Bootstrapper,               Zend_Application_Bootstrap_ResourceBootstrapper{//...    public function getClassResources()    {        if (null === $this->_classResources) {            if (version_compare(PHP_VERSION, '5.2.6') === -1) {                $class        = new ReflectionObject($this);                $classMethods = $class->getMethods();                $methodNames  = array();                foreach ($classMethods as $method) {                    $methodNames[] = $method->getName();                }            } else {                $methodNames = get_class_methods($this);            }            $this->_classResources = array();            foreach ($methodNames as $method) {                if (5 < strlen($method) && '_init' === substr($method, 0, 5)) {                    $this->_classResources[strtolower(substr($method, 5))] = $method;                }            }        }        return $this->_classResources;    } //...}
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注册为类资源后，将会被自动调用，代码如下：
写道protected function _bootstrap($resource = null)
{
if (null === $resource) {
foreach ($this->getClassResourceNames() as $resource) {
$this->_executeResource($resource);
}

foreach ($this->getPluginResourceNames() as $resource) {
?? $this->_executeResource($resource);
} 
} elseif (is_string($resource)) {
$this->_executeResource($resource);
} elseif (is_array($resource)) {
foreach ($resource as $r) {
$this->_executeResource($r);
}
} else {
throw new Zend_Application_Bootstrap_Exception('Invalid argument passed to ' . __METHOD__);
}
}
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