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103 lines
4.0 KiB
HTML
103 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>从资源流里读取一行直到给定的定界符</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.stream-get-line" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">stream_get_line</h1>
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<p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">stream_get_line</span> — <span class="dc-title">从资源流里读取一行直到给定的定界符</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.stream-get-line-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>stream_get_line</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$handle</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$length</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$ending</code></span>
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] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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从给定的资源流里读取一行。
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</p>
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<p class="para">
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当读取到 <code class="parameter">length</code> 个字节数就结束，或者当在读取的字符串中发现 <code class="parameter">ending</code> （<em class="emphasis">不</em>包含到返回值里）也结束，又或者遇到了 <acronym title="End Of File">EOF</acronym> 也结束（总之以上条件中哪个先出现就以哪个为准）。
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</p>
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<p class="para">
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这个函数与 <span class="function"><a href="fgets.html" class="function">fgets()</a></span> 几乎是相同的，唯一的区别是在这个函数里面允许指定行尾的定界符，而不是使用标准的 \n， \r 还有 \r\n ，并且返回值中<em class="emphasis">不</em>包含定界符。（翻译注：也可以把 \n 等作为定界符传入 <code class="parameter">ending</code> ）
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.stream-get-line-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">handle</code></dt>
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<dd>
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<p class="para">
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一个有效的文件句柄。
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</p>
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</dd>
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<dt>
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<code class="parameter">length</code></dt>
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<dd>
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<p class="para">
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需要从句柄里读取的字节数。
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</p>
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</dd>
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<dt>
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<code class="parameter">ending</code></dt>
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<dd>
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<p class="para">
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可选参数，字符串定界符。
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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.stream-get-line-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回一个字符串，该字符串的内容根据 <code class="parameter">length</code> 字节数从 <code class="parameter">handle</code> 里读取。
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</p>
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<p class="para">
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如果发生错误，则返回 <strong><code>FALSE</code></strong>.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.stream-get-line-seealso">
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<h3 class="title">参见</h3>
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="fread.html" class="function" rel="rdfs-seeAlso">fread()</a> - 读取文件（可安全用于二进制文件）</span></li>
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<li class="member"><span class="function"><a href="fgets.html" class="function" rel="rdfs-seeAlso">fgets()</a> - 从文件指针中读取一行</span></li>
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<li class="member"><span class="function"><a href="fgetc.html" class="function" rel="rdfs-seeAlso">fgetc()</a> - 从文件指针中读取字符</span></li>
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</ul>
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</div>
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</div></div></div></body></html> |