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Detailed explanation of ThinkPHP behavioral extensions and plug-ins

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Jan 03, 2018 am 10:54 AM

php thinkphp plug-in

本文主要介绍了ThinkPHP中的行为扩展和插件原理分析、ThinkPHP中的行为、自定义行为、自定义插件等，给大家提供参考，希望对大家有所帮助。

原理分析

将标签与类之间的对应关系（如'app_init'=>array('Common\Behavior\InitHook')），通过Hook类中import或add方法，加载到Hook类中静态变量$tags中。当执行Hook中静态方法listen或者exec方法的时候（listen方法中调用了exec），实例化标签对应的类，调用相应的方法（如果是插件，调用传递的方法，如果是行为，调用run方法）。
Hook中exec方法定义如下：

static public function exec($name, $tag,&$params=NULL) {
       if(false === strpos($name,&#39;\\&#39;)) {            // 插件（多个入口）
           $class   =  "Addons\\{$name}\\{$name}Addon";
       }else{            // 行为扩展（只有一个run入口方法）
           $class   =  $name.&#39;Behavior&#39;;            $tag    =   &#39;run&#39;;
       }        $addon   = new $class();        return $addon->$tag($params);
   }

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ThinkPHP中的行为加载标签与类之间的对应关系

// 加载模式行为定义

if(isset($mode[&#39;tags&#39;])) {
    Hook::import(is_array($mode[&#39;tags&#39;])?$mode[&#39;tags&#39;]:include $mode[&#39;tags&#39;]);
}// 加载应用行为定义if(is_file(CONF_PATH.&#39;tags.php&#39;))    // 允许应用增加开发模式配置定义
    Hook::import(include CONF_PATH.&#39;tags.php&#39;);

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模式行为对应关系

在ThinkPHP/Mode/common.php中tags标签中定义

&#39;tags&#39;  =>  array(        &#39;app_begin&#39;     =>  array(            &#39;Behavior\ReadHtmlCache&#39;, // 读取静态缓存
        ),        &#39;app_end&#39;       =>  array(            &#39;Behavior\ShowPageTrace&#39;, // 页面Trace显示
        ),        &#39;view_parse&#39;    =>  array(            &#39;Behavior\ParseTemplate&#39;, // 模板解析 支持PHP、内置模板引擎和第三方模板引擎
        ),        &#39;template_filter&#39;=> array(            &#39;Behavior\ContentReplace&#39;, // 模板输出替换
        ),        &#39;view_filter&#39;   =>  array(            &#39;Behavior\WriteHtmlCache&#39;, // 写入静态缓存
        ),
    )

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应用行为对应关系

在Application/Common/Conf/tags.php中定义

调用相应的行为

Detailed explanation of ThinkPHP behavioral extensions and plug-ins

如Hook::listen('app_begin')相当于调用Behavior\ReadHtmlCache中的run方法。找到该类，可以查看其对应的run方法如下
Detailed explanation of ThinkPHP behavioral extensions and plug-ins

自定义行为 1.在Application/Common/Conf/tags.php中添加对应关系

1	`'dqs_behavior'=>array('Common\Behavior\Dqs')`

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将对应关系添加到tags.php，程序会自动将其加载到Hook的$tags变量中，当然也可通过使用Hook中的add方法手动加载。

2.定义Common\Behavior\DqsBehavior类

<?phpnamespace Common\Behavior;use Think\Behavior;
 
defined(&#39;THINK_PATH&#39;) or exit();class DqsBehavior extends Behavior {
 
    public function run(&$content){
        echo &#39;<pre class="brush:php;toolbar:false">&#39;;
        print_r(&#39;调用了行为Dqs&#39;);        echo &#39;

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'; } }

其中Behavior 类为ThinkPHP自带的抽象类

3.调用行为

Detailed explanation of ThinkPHP behavioral extensions and plug-ins

效果如下图
Detailed explanation of ThinkPHP behavioral extensions and plug-ins

自定义插件 1.定义插件文件

通过查看Hook文件中插件类实例化方式（$class = "Addons\\{$name}\\{$name}Addon";），可以得知，如果想定义一个名为Dqs的插件，应该在Addons/Dqs目录下定义DqsAddon.class.php文件。程序如下：

<?phpnamespace Addons\Dqs;class DqsAddon{   
    public $info = array(            &#39;name&#39;=>&#39;Editor&#39;,            &#39;title&#39;=>&#39;dqs测试插件&#39;,            &#39;description&#39;=>&#39;主要用于输出&#39;,            &#39;status&#39;=>1,            &#39;author&#39;=>&#39;lidequan&#39;,            &#39;version&#39;=>&#39;0.1&#39;
    );    public  function dqsTrace($pa){
        echo &#39;<pre class="brush:php;toolbar:false">&#39;;
        print_r($pa);        echo &#39;

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'; } }

2.注册插件

所谓的注册插件，就是将插件的标签与类之间的对应关系，添加到Hook类中静态变量$tags中。对应行为来说，标识符仅仅是一个标识符，可以定义任意的标识符，但是对应插件来说，标识符不能随意定义，因为插件的标识符代表的是插件的方法名。所以上面的插件注册代码如下

1	`\Think\Hook::add('dqsTrace',array('Dqs'));`

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3.调用插件

1 2	`$params=array('name'=>'dqs');` `\Think\Hook::listen('dqsTrace',$params);`

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效果如下
Detailed explanation of ThinkPHP behavioral extensions and plug-ins

原理分析

static public function exec($name, $tag,&$params=NULL) {
       if(false === strpos($name,&#39;\\&#39;)) {            // 插件（多个入口）
           $class   =  "Addons\\{$name}\\{$name}Addon";
       }else{            // 行为扩展（只有一个run入口方法）
           $class   =  $name.&#39;Behavior&#39;;            $tag    =   &#39;run&#39;;
       }        $addon   = new $class();        return $addon->$tag($params);
   }

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ThinkPHP中的行为加载标签与类之间的对应关系

// 加载模式行为定义

if(isset($mode[&#39;tags&#39;])) {
    Hook::import(is_array($mode[&#39;tags&#39;])?$mode[&#39;tags&#39;]:include $mode[&#39;tags&#39;]);
}// 加载应用行为定义if(is_file(CONF_PATH.&#39;tags.php&#39;))    // 允许应用增加开发模式配置定义
    Hook::import(include CONF_PATH.&#39;tags.php&#39;);

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模式行为对应关系

在ThinkPHP/Mode/common.php中tags标签中定义

&#39;tags&#39;  =>  array(        &#39;app_begin&#39;     =>  array(            &#39;Behavior\ReadHtmlCache&#39;, // 读取静态缓存
        ),        &#39;app_end&#39;       =>  array(            &#39;Behavior\ShowPageTrace&#39;, // 页面Trace显示
        ),        &#39;view_parse&#39;    =>  array(            &#39;Behavior\ParseTemplate&#39;, // 模板解析 支持PHP、内置模板引擎和第三方模板引擎
        ),        &#39;template_filter&#39;=> array(            &#39;Behavior\ContentReplace&#39;, // 模板输出替换
        ),        &#39;view_filter&#39;   =>  array(            &#39;Behavior\WriteHtmlCache&#39;, // 写入静态缓存
        ),
    )

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应用行为对应关系

在Application/Common/Conf/tags.php中定义

调用相应的行为

Detailed explanation of ThinkPHP behavioral extensions and plug-ins

自定义行为 1.在Application/Common/Conf/tags.php中添加对应关系

1	`'dqs_behavior'=>array('Common\Behavior\Dqs')`

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将对应关系添加到tags.php，程序会自动将其加载到Hook的$tags变量中，当然也可通过使用Hook中的add方法手动加载。

2.定义Common\Behavior\DqsBehavior类

<?phpnamespace Common\Behavior;use Think\Behavior;
 
defined(&#39;THINK_PATH&#39;) or exit();class DqsBehavior extends Behavior {
 
    public function run(&$content){
        echo &#39;<pre class="brush:php;toolbar:false">&#39;;
        print_r(&#39;调用了行为Dqs&#39;);        echo &#39;

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'; } }

其中Behavior 类为ThinkPHP自带的抽象类

3.调用行为

Detailed explanation of ThinkPHP behavioral extensions and plug-ins

效果如下图
Detailed explanation of ThinkPHP behavioral extensions and plug-ins

自定义插件 1.定义插件文件

<?phpnamespace Addons\Dqs;class DqsAddon{   
    public $info = array(            &#39;name&#39;=>&#39;Editor&#39;,            &#39;title&#39;=>&#39;dqs测试插件&#39;,            &#39;description&#39;=>&#39;主要用于输出&#39;,            &#39;status&#39;=>1,            &#39;author&#39;=>&#39;lidequan&#39;,            &#39;version&#39;=>&#39;0.1&#39;
    );    public  function dqsTrace($pa){
        echo &#39;<pre class="brush:php;toolbar:false">&#39;;
        print_r($pa);        echo &#39;

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'; } }

2.注册插件

1	`\Think\Hook::add('dqsTrace',array('Dqs'));`

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3.调用插件

1 2	`$params=array('name'=>'dqs');` `\Think\Hook::listen('dqsTrace',$params);`

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效果如下
Detailed explanation of ThinkPHP behavioral extensions and plug-ins

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