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:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
<?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:
1
2
3
4
5
|
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:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
<?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:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
<?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:
1
2
3
|
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:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
<?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" ; } |
结果:
1
2
|
对象注册表name已经定义 对象注册表age没有定义 |
说明:
如果定义了,可以检测出来。
5.删除静态注册表
Zend_Registry::_unsetInstance()方法删除静态注册表
案例:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
<?php require_once ( "Zend/Loader.php" ); Zend_Loader::loadClass( 'Zend_Registry' ); Zend_Registry::set( "name" , "张三" ); echo "执行操作前:" ; echo "<p>" ; 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" ; } Zend_Registry::_unsetInstance( "name" ); echo "<p>" ; echo "执行操作后:" ; echo "<p>" ; 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" ; } |
结果:
1
2
3
4
5
6
|
执行操作前: 对象注册表name已经定义 对象注册表age没有定义 执行操作后: 对象注册表name没有定义 对象注册表age没有定义 |
说明:执行完删除方法之后,之前的注册信息就没有了。
小结:
这就是Zend_Registry的几个常用的方法与案例。通过注册表可以实现很多普通变量无法实现的功能。
希望本文所述对大家基于Zend Framework框架的PHP程序设计有所帮助。