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?>
<div id="function.openssl-csr-export" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">openssl_csr_export</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">openssl_csr_export</span> &mdash; <span class="dc-title">将 <abbr title="Certificate Signing Request">CSR</abbr> 作为字符串导出</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.openssl-csr-export-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>openssl_csr_export</strong></span>(<span class="methodparam"><span class="type"><span class="type"><a href="class.opensslcertificatesigningrequest.php" class="type OpenSSLCertificateSigningRequest">OpenSSLCertificateSigningRequest</a></span>|<span class="type"><a href="language.types.string.php" class="type string">string</a></span></span> <code class="parameter">$csr</code></span>, <span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter reference">&$output</code></span>, <span class="methodparam"><span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span> <code class="parameter">$no_text</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong></span></span>): <span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>openssl_csr_export()</strong></span> 获取证书签名请求（<code class="parameter">csr</code>）并通过引用保存其 <abbr title="Privacy-Enhanced Mail">PEM</abbr> 格式的字符串（<code class="parameter">output</code>）。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.openssl-csr-export-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
     
 <dt><code class="parameter">csr</code></dt>
 <dd>
  <p class="para">
   See <a href="openssl.certparams.php" class="link">CSR parameters</a> for a list of valid values.
  </p>
 </dd>

    
     <dt><code class="parameter">output</code></dt>
     <dd>
      <p class="para">
      在成功时，该字符串将包含 <abbr title="Privacy-Enhanced Mail">PEM</abbr> 编码的 <abbr title="Certificate Signing Request">CSR</abbr>。
      </p>
     </dd>
    
    
     <dt><code class="parameter">no_text</code></dt>
     <dd>
      <p class="para">
可选参数 <code class="parameter">notext</code> 影响输出的冗余度。如果设为
<strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong>，输出内容将包含附加的人类可读信息。<code class="parameter">notext</code> 的缺省值为 <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong>。
</p>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.openssl-csr-export-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong>， 或者在失败时返回 <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong>。
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.openssl-csr-export-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.0.0</td>
      <td>
       <code class="parameter">csr</code> 现在接受 <span class="classname"><a href="class.opensslcertificatesigningrequest.php" class="classname">OpenSSLCertificateSigningRequest</a></span>
       实例；之前接受类型 <code class="literal">OpenSSL X.509 CSR</code> 的 <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span>。
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 examples" id="refsect1-function.openssl-csr-export-examples">
  <h3 class="title">示例</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>示例 #1 openssl_csr_export() 示例</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$subject </span><span style="color: #007700">= array(<br />    </span><span style="color: #DD0000">"commonName" </span><span style="color: #007700">=&gt; </span><span style="color: #DD0000">"example.com"</span><span style="color: #007700">,<br />);<br /></span><span style="color: #0000BB">$private_key </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_pkey_new</span><span style="color: #007700">(array(<br />    </span><span style="color: #DD0000">"private_key_bits" </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">2048</span><span style="color: #007700">,<br />    </span><span style="color: #DD0000">"private_key_type" </span><span style="color: #007700">=&gt; </span><span style="color: #0000BB">OPENSSL_KEYTYPE_RSA</span><span style="color: #007700">,<br />));<br /></span><span style="color: #0000BB">$configargs </span><span style="color: #007700">= array(<br />    </span><span style="color: #DD0000">'digest_alg' </span><span style="color: #007700">=&gt; </span><span style="color: #DD0000">'sha256WithRSAEncryption'<br /></span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$csr </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_csr_new</span><span style="color: #007700">(</span><span style="color: #0000BB">$subject</span><span style="color: #007700">, </span><span style="color: #0000BB">$private_key</span><span style="color: #007700">, </span><span style="color: #0000BB">$configargs</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">openssl_csr_export</span><span style="color: #007700">(</span><span style="color: #0000BB">$csr</span><span style="color: #007700">, </span><span style="color: #0000BB">$csr_string</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$csr_string</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.openssl-csr-export-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="function.openssl-csr-export-to-file.php" class="function" rel="rdfs-seeAlso">openssl_csr_export_to_file()</a> - 将 CSR 导出到文件</span></li>
    <li><span class="function"><a href="function.openssl-csr-new.php" class="function" rel="rdfs-seeAlso">openssl_csr_new()</a> - 生成一个 CSR</span></li>
    <li><span class="function"><a href="function.openssl-csr-sign.php" class="function" rel="rdfs-seeAlso">openssl_csr_sign()</a> - 用另一个证书签署 CSR（或者本身）并且生成一个证书</span></li>
   </ul>
  </p>
 </div>


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