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77 lines
3.1 KiB
HTML
77 lines
3.1 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>Determine if a file descriptor is an interactive terminal</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-isatty" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">posix_isatty</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">posix_isatty</span> — <span class="dc-title">Determine if a file descriptor is an interactive terminal</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.posix-isatty-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_isatty</strong></span>
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( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$fd</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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Determines if the file descriptor <code class="parameter">fd</code> refers to a valid
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terminal type device.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.posix-isatty-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">fd</code></dt>
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<dd>
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<p class="para">
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The file descriptor, which is expected to be either a file
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<span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span> or an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>. An <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>
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will be assumed to be a file descriptor that can be passed directly to
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the underlying system call.
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</p>
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<p class="para">
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In almost all cases, you will want to provide a file <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span>.
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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-isatty-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns <strong><code>TRUE</code></strong> if <code class="parameter">fd</code> is an open descriptor connected
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to a terminal and <strong><code>FALSE</code></strong> otherwise.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.posix-isatty-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_ttyname.html" class="function" rel="rdfs-seeAlso">posix_ttyname()</a> - Determine terminal device name</span></li>
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<li class="member"><span class="function"><a href="stream_isatty.html" class="function" rel="rdfs-seeAlso">stream_isatty()</a> - Check if a stream is a TTY</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> |