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101 lines
4.4 KiB
HTML
101 lines
4.4 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>Set the GID of the current process</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.posix-setgid" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">posix_setgid</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">posix_setgid</span> — <span class="dc-title">Set the GID of the current process</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.posix-setgid-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>posix_setgid</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$gid</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Set the real group ID of the current process. This is a
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privileged function and needs appropriate privileges (usually
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root) on the system to be able to perform this function. The
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appropriate order of function calls is
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<span class="function"><strong>posix_setgid()</strong></span> first,
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<span class="function"><a href="posix_setuid.html" class="function">posix_setuid()</a></span> last.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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If the caller is a super user, this will also set the effective
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group id.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.posix-setgid-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">gid</code></dt>
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<dd>
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<p class="para">
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The group id.
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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.posix-setgid-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 <strong><code>TRUE</code></strong>， 或者在失败时返回 <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.posix-setgid-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-4352">
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<p><strong>Example #1 <span class="function"><strong>posix_setgid()</strong></span> example</strong></p>
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<div class="example-contents"><p>
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This example will print out the effective group id, once it is changed.
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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 /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'My real group id is '</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_getgid</span><span style="color: #007700">(); </span><span style="color: #FF8000">//20<br /></span><span style="color: #0000BB">posix_setgid</span><span style="color: #007700">(</span><span style="color: #0000BB">40</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">'My real group id is '</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_getgid</span><span style="color: #007700">(); </span><span style="color: #FF8000">//40<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'My effective group id is '</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_getegid</span><span style="color: #007700">(); </span><span style="color: #FF8000">//40<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>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.posix-setgid-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="posix_getgrgid.html" class="function" rel="rdfs-seeAlso">posix_getgrgid()</a> - Return info about a group by group id</span></li>
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<li class="member"><span class="function"><a href="posix_getgid.html" class="function" rel="rdfs-seeAlso">posix_getgid()</a> - Return the real group ID of the current process</span></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> |