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<div id="yaf-response-abstract.getbody" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">Yaf_Response_Abstract::getBody</h1>
  <p class="verinfo">(Yaf &gt;=1.0.0)</p><p class="refpurpose"><span class="refname">Yaf_Response_Abstract::getBody</span> &mdash; <span class="dc-title">获取已存在的内容</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-yaf-response-abstract.getbody-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>Yaf_Response_Abstract::getBody</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$key</code><span class="initializer"> = ?</span></span>): <span class="type"><a href="language.types.mixed.php" class="type mixed">mixed</a></span></div>

  <p class="para rdfs-comment">
   获取已存在的内容
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-yaf-response-abstract.getbody-parameters">
  <h3 class="title">参数</h3>
  <dl>
   
    <dt><code class="parameter">key</code></dt>
    <dd>
     <p class="para">
      内容 key，如果未指定，然后默认使用
      Yaf_Response_Abstract::DEFAULT_BODY。如果传入 <strong><code><a href="reserved.constants.php#constant.null">null</a></code></strong>，所有的内容将会以数组形式被返回。
      <blockquote class="note"><p><strong class="note">注意</strong>: 
       <p class="para">
        此参数自 2.2.0 起引入
      </p>
      </p></blockquote>
     </p>
    </dd>
   
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-yaf-response-abstract.getbody-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-yaf-response-abstract.getbody-examples">
  <h3 class="title">示例</h3>
  <div class="example" id="example-1">
   <p><strong>示例 #1 <span class="function"><strong>Yaf_Response_Abstract::getBody()</strong></span> 示例</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$response </span><span style="color: #007700">= new </span><span style="color: #0000BB">Yaf_Response_Http</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$response</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setBody</span><span style="color: #007700">(</span><span style="color: #DD0000">"Hello"</span><span style="color: #007700">)-&gt;</span><span style="color: #0000BB">setBody</span><span style="color: #007700">(</span><span style="color: #DD0000">" World"</span><span style="color: #007700">, </span><span style="color: #DD0000">"footer"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$response</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getBody</span><span style="color: #007700">()); </span><span style="color: #FF8000">//default <br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$response</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getBody</span><span style="color: #007700">(</span><span style="color: #0000BB">Yaf_Response_Abstract</span><span style="color: #007700">::</span><span style="color: #0000BB">DEFAULT_BODY</span><span style="color: #007700">)); </span><span style="color: #FF8000">//same as above<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$response</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getBody</span><span style="color: #007700">(</span><span style="color: #DD0000">"footer"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$response</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getBody</span><span style="color: #007700">(</span><span style="color: #0000BB">NULL</span><span style="color: #007700">)); </span><span style="color: #FF8000">//get all<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
   </div>

   <div class="example-contents"><p>以上示例的输出类似于：</p></div>
   <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">string(5) &quot;Hello&quot;
string(5) &quot;Hello&quot;
string(6) &quot; World&quot;
array(2) {
  [&quot;content&quot;]=&gt;
  string(5) &quot;Hello&quot;
  [&quot;footer&quot;]=&gt;
  string(6) &quot; World&quot;
}</pre>
</div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-yaf-response-abstract.getbody-seealso">
  <h3 class="title">参见</h3>
  <ul class="simplelist">
   <li><span class="methodname"><a href="yaf-response-abstract.setbody.php" class="methodname" rel="rdfs-seeAlso">Yaf_Response_Abstract::setBody()</a> - 设置内容到响应</span></li>
   <li><span class="methodname"><a href="yaf-response-abstract.appendbody.php" class="methodname" rel="rdfs-seeAlso">Yaf_Response_Abstract::appendBody()</a> - 向响应 body 追加内容</span></li>
   <li><span class="methodname"><a href="yaf-response-abstract.prependbody.php" class="methodname" rel="rdfs-seeAlso">Yaf_Response_Abstract::prependBody()</a> - The prependBody purpose</span></li>
   <li><span class="methodname"><a href="yaf-response-abstract.clearbody.php" class="methodname" rel="rdfs-seeAlso">Yaf_Response_Abstract::clearBody()</a> - 丢弃所有已存在的响应 body</span></li>
  </ul>
 </div>


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