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113 lines
4.0 KiB
HTML
113 lines
4.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>获取 Apache subprocess_env 变量</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.apache-getenv" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">apache_getenv</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">apache_getenv</span> — <span class="dc-title">获取 Apache subprocess_env 变量</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.apache-getenv-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>apache_getenv</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$variable</code></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$walk_to_top</code><span class="initializer"> = false</span></span>
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] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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获取 <code class="parameter">variable</code> 指定的环境变量。
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</p>
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<p class="para">
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此函数需要 Apache 2 否则为 undefined。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.apache-getenv-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">variable</code></dt>
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<dd>
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<p class="para">
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Apache 环境变量
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</p>
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</dd>
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<dt>
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<code class="parameter">walk_to_top</code></dt>
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<dd>
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<p class="para">
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是否获取对Apache各层可用的顶层变量
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.apache-getenv-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 Apache 环境变量值，失败时返回 <strong><code>FALSE</code></strong>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.apache-getenv-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-5816">
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<p><strong>Example #1 <span class="function"><strong>apache_getenv()</strong></span> example</strong></p>
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<div class="example-contents"><p>
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该示例显示如何取得 Apache 环境变量
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<var class="varname"><var class="varname">SERVER_ADDR</var></var>的值。
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$ret </span><span style="color: #007700">= </span><span style="color: #0000BB">apache_getenv</span><span style="color: #007700">(</span><span style="color: #DD0000">"SERVER_ADDR"</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$ret</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程的输出类似于：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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42.24.42.240
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.apache-getenv-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="apache_setenv.html" class="function" rel="rdfs-seeAlso">apache_setenv()</a> - 设置 Apache 子进程环境变量</span></li>
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<li class="member"><span class="function"><a href="getenv.html" class="function" rel="rdfs-seeAlso">getenv()</a> - 获取一个环境变量的值</span></li>
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<li class="member"><a href="language.variables.superglobals.html" class="link">Superglobals</a></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |