本文实例讲述了Zend Framework中Zend_Registry组件用法。，具体如下：
1.对象注册表
入门案例：
<?php
require_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：
<?php
require_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：
<?php
require_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：
Mike 30 male
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：
<?php
require_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";
}
