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<div id="function.oci-password-change" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">oci_password_change</h1>
  <p class="verinfo">(PHP 5, PHP 7, PHP 8, PECL OCI8 &gt;= 1.1.0)</p><p class="refpurpose"><span class="refname">oci_password_change</span> &mdash; <span class="dc-title">修改 Oracle 用户的密码</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.oci-password-change-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>oci_password_change</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> <code class="parameter">$connection</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$username</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$old_password</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$new_password</code></span><br>): <span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span></div>

  <div class="methodsynopsis dc-description"><span class="methodname"><strong>oci_password_change</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$database_name</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$username</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$old_password</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$new_password</code></span><br>): <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span></div>

  <p class="para rdfs-comment">
   修改用户 <code class="parameter">username</code> 的密码。
  </p>
  <p class="para">
   <span class="function"><strong>oci_password_change()</strong></span> 函数对于 PHP 命令行脚本或在整个 PHP 应用程序中使用非持久连接时最有用。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.oci-password-change-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">connection</code></dt>
     <dd>
      <p class="para">
       Oracle 连接标识符，由 <span class="function"><a href="function.oci-connect.php" class="function">oci_connect()</a></span> 或 <span class="function"><a href="function.oci-pconnect.php" class="function">oci_pconnect()</a></span> 返回。
      </p>
     </dd>
    
    
     <dt><code class="parameter">username</code></dt>
     <dd>
      <p class="para">
       Oracle 用户名。
      </p>
     </dd>
    
    
     <dt><code class="parameter">old_password</code></dt>
     <dd>
      <p class="para">
       旧密码。
      </p>
     </dd>
    
    
     <dt><code class="parameter">new_password</code></dt>
     <dd>
      <p class="para">
       要设置的新密码。
      </p>
     </dd>
    
    
     <dt><code class="parameter">database_name</code></dt>
     <dd>
      <p class="para">
       数据库名。
      </p>
     </dd>
    
   </dl>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.oci-password-change-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   提供 <code class="parameter">database_name</code> 时，<span class="function"><strong>oci_password_change()</strong></span> 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>。提供
   <code class="parameter">connection</code> 时，<span class="function"><strong>oci_password_change()</strong></span> 成功时返回连接资源， 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 examples" id="refsect1-function.oci-password-change-examples">
  <h3 class="title">示例</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>示例 #1 <span class="function"><strong>oci_password_change()</strong></span> 示例，更改已连接用户的密码</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br />$dbase      </span><span style="color: #007700">= </span><span style="color: #DD0000">'localhost/orcl'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$user       </span><span style="color: #007700">= </span><span style="color: #DD0000">'cj'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$current_pw </span><span style="color: #007700">= </span><span style="color: #DD0000">'welcome'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$new_pw     </span><span style="color: #007700">= </span><span style="color: #DD0000">'geelong'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$c </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_pconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$current_pw</span><span style="color: #007700">, </span><span style="color: #0000BB">$dbase</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_password_change</span><span style="color: #007700">(</span><span style="color: #0000BB">$c</span><span style="color: #007700">, </span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$current_pw</span><span style="color: #007700">, </span><span style="color: #0000BB">$new_pw</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">"New password is : " </span><span style="color: #007700">. </span><span style="color: #0000BB">$new_pw </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

   </div>
  </p>
  <p class="para">
   <div class="example" id="example-2">
    <p><strong>示例 #2 <span class="function"><strong>oci_password_change()</strong></span> 示例之一步更改密码并连接</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br />$dbase      </span><span style="color: #007700">= </span><span style="color: #DD0000">'localhost/orcl'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$user       </span><span style="color: #007700">= </span><span style="color: #DD0000">'cj'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$current_pw </span><span style="color: #007700">= </span><span style="color: #DD0000">'welcome'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$new_pw     </span><span style="color: #007700">= </span><span style="color: #DD0000">'geelong'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$c </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_pconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$current_pw</span><span style="color: #007700">, </span><span style="color: #0000BB">$dbase</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$c</span><span style="color: #007700">) {<br />    </span><span style="color: #0000BB">$m </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_error</span><span style="color: #007700">();<br />    if (</span><span style="color: #0000BB">$m</span><span style="color: #007700">[</span><span style="color: #DD0000">'code'</span><span style="color: #007700">] == </span><span style="color: #0000BB">28001</span><span style="color: #007700">) { </span><span style="color: #FF8000">// "ORA-28001: the password has expired"<br />        // Login and reset password at the same time<br />        </span><span style="color: #0000BB">$c </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_password_change</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbase</span><span style="color: #007700">, </span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$current_pw</span><span style="color: #007700">, </span><span style="color: #0000BB">$new_pw</span><span style="color: #007700">);<br />        if (</span><span style="color: #0000BB">$c</span><span style="color: #007700">) {<br />            echo </span><span style="color: #DD0000">"New password is : " </span><span style="color: #007700">. </span><span style="color: #0000BB">$new_pw </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />        }<br />    }<br />}<br /><br />if (!</span><span style="color: #0000BB">$c</span><span style="color: #007700">) {  </span><span style="color: #FF8000">// The original error wasn't 28001, or the password change failed<br />    </span><span style="color: #0000BB">$m </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_error</span><span style="color: #007700">();<br />    </span><span style="color: #0000BB">trigger_error</span><span style="color: #007700">(</span><span style="color: #DD0000">'Could not connect to database: '</span><span style="color: #007700">. </span><span style="color: #0000BB">$m</span><span style="color: #007700">[</span><span style="color: #DD0000">'message'</span><span style="color: #007700">], </span><span style="color: #0000BB">E_USER_ERROR</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">// Use the connection $c<br />// ...<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
    </div>

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


 <div class="refsect1 notes" id="refsect1-function.oci-password-change-notes">
  <h3 class="title">注释</h3>
  <blockquote class="note"><p><strong class="note">注意</strong>: 
   <p class="para">
    使用此函数或直接在 Oracle 中更改密码应该小心。这是因为 PHP 应用程序可能会通过使用旧密码进行身份验证来继续成功地重用持久连接。最佳做法是每当更改用户密码时重新启动所有 Web 服务器。
   </p>
  </p></blockquote>
  <blockquote class="note"><p><strong class="note">注意</strong>: 
   <p class="para">
    如果将 Oracle 客户端库或数据库从 11.2.0.3 之前的版本升级到 11.2.0.3 或更高版本，<span class="function"><strong>oci_password_change()</strong></span>
    可能会给出错误“ORA-1017: invalid username/password”，除非同时升级客户端和服务器版本。
   </p>
  </p></blockquote>
  <blockquote class="note"><p><strong class="note">注意</strong>: 
   <p class="para">
    第二个 <span class="function"><strong>oci_password_change()</strong></span> 语法自 OCI8 版本 1.1 起可用。
   </p>
  </p></blockquote>
 </div>


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