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Zend Framework入门教程之Zend_Registry组件用法详解

2024-05-04 22:50:22
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本文实例讲述了Zend Framework中Zend_Registry组件用法。分享给大家供大家参考,具体如下:

1.对象注册表

入门案例:

<?phprequire_once("Zend/Loader.php");Zend_Loader::loadClass('Zend_Registry');$member = array(  "姓名"=>"张三",  "性别"=>"女",  "年龄"=>"13",  "职业"=>"学生",  "爱好"=>"玩游戏",  "血型"=>"AB"  );$registry = new Zend_Registry($member);echo "姓名为:";echo $registry["姓名"];echo "<p>";echo "性别为:";echo $registry["性别"];echo "<p>";echo "年龄为:";echo $registry["年龄"];echo "<p>";echo "职业为:";echo $registry["职业"];echo "<p>";echo "爱好为:";echo $registry["爱好"];echo "<p>";

结果为:

姓名为:张三性别为:女年龄为:13职业为:学生爱好为:玩游戏

2.set()方法和get()方法设置数据、获取数据

语法:

设置值Zend_Registry::set('index','value')
获取值Zend_Registry::get('index')

案例:

<?phprequire_once("Zend/Loader.php");Zend_Loader::loadClass('Zend_Registry');$member = array(  "姓名"=>"张三",  "性别"=>"女",  "年龄"=>"13",  "职业"=>"学生",  "爱好"=>"玩游戏",  "血型"=>"AB"  );Zend_Registry::set("registry",$member);$registry = Zend_Registry::get("registry");echo "姓名为:";echo $registry["姓名"];echo "<p>";echo "性别为:";echo $registry["性别"];echo "<p>";echo "年龄为:";echo $registry["年龄"];echo "<p>";echo "职业为:";echo $registry["职业"];echo "<p>";echo "爱好为:";echo $registry["爱好"];echo "<p>";

说明:效果等同于new的结果。

3.对象注册表setInstance、getInstance

例子:

<?phprequire_once("Zend/Loader.php");Zend_Loader::loadClass('Zend_Registry');$registry = new Zend_Registry();Zend_Registry::setInstance($registry);$registry->name = "Mike";$registry->age = "30";$registry = Zend_Registry::getInstance();echo $registry->name;echo "<p>";echo $registry->age;echo "<p>";$registry->sex = "male";echo $registry->sex;

结果:

Mike30male

说明:通过setInstance方法,就可以用对象的方式设置其中的值了,然后通过getInstance来获取值。

4.isRegistered()来实现索引是否有值的判断。

案例:

<?phprequire_once("Zend/Loader.php");Zend_Loader::loadClass('Zend_Registry');Zend_Registry::set("name","张三");if(Zend_Registry::isRegistered("name")){  echo "对象注册表name已经定义";}else{  echo "对象注册表name没有定义";}echo "<p>";if(Zend_Registry::isRegistered("age")){  echo "对象注册表age已经定义";}else{  echo "对象注册表age没有定义";}            
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