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117 lines
4.5 KiB
HTML
117 lines
4.5 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>将字符串分割成小块</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.chunk-split" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">chunk_split</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">chunk_split</span> — <span class="dc-title">将字符串分割成小块</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.chunk-split-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>chunk_split</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$body</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$chunklen</code><span class="initializer"> = 76</span></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$end</code><span class="initializer"> = "\r\n"</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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使用此函数将字符串分割成小块非常有用。例如将
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<span class="function"><a href="base64_encode.html" class="function">base64_encode()</a></span> 的输出转换成符合 RFC 2045 语义的字符串。它会在每
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<code class="parameter">chunklen</code> 个字符后边插入
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<code class="parameter">end</code>。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.chunk-split-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">body</code></dt>
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<dd>
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<p class="para">
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要分割的字符。
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</p>
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</dd>
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<dt>
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<code class="parameter">chunklen</code></dt>
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<dd>
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<p class="para">
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分割的尺寸。
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</p>
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</dd>
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<dt>
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<code class="parameter">end</code></dt>
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<dd>
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<p class="para">
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行尾序列符号。
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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.chunk-split-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回分割后的字符。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.chunk-split-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-5894">
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<p><strong>Example #1 <span class="function"><strong>chunk_split()</strong></span> 例子</strong></p>
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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: #FF8000">// 使用 RFC 2045 语义格式化 $data<br /></span><span style="color: #0000BB">$new_string </span><span style="color: #007700">= </span><span style="color: #0000BB">chunk_split</span><span style="color: #007700">(</span><span style="color: #0000BB">base64_encode</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</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>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.chunk-split-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="str_split.html" class="function" rel="rdfs-seeAlso">str_split()</a> - 将字符串转换为数组</span></li>
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<li class="member"><span class="function"><a href="explode.html" class="function" rel="rdfs-seeAlso">explode()</a> - 使用一个字符串分割另一个字符串</span></li>
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<li class="member"><span class="function"><a href="split.html" class="function" rel="rdfs-seeAlso">split()</a> - 用正则表达式将字符串分割到数组中</span></li>
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<li class="member"><span class="function"><a href="wordwrap.html" class="function" rel="rdfs-seeAlso">wordwrap()</a> - 打断字符串为指定数量的字串</span></li>
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<li class="member"><a href="http://www.faqs.org/rfcs/rfc2045" class="link external">» RFC 2045</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> |