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90 lines
3.8 KiB
HTML
90 lines
3.8 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>返回指定的字符</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.chr" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">chr</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">chr</span> — <span class="dc-title">返回指定的字符</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.chr-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>chr</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$ascii</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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返回相对应于 <code class="parameter">ascii</code>
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所指定的单个字符。
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</p>
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<p class="para">
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此函数与 <span class="function"><a href="ord.html" class="function">ord()</a></span> 是互补的。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.chr-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">ascii</code></dt>
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<dd>
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<p class="para">
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Ascii 码。
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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.chr-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回规定的字符。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.chr-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-5893">
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<p><strong>Example #1 <span class="function"><strong>chr()</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 />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">"The string ends in escape: "</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$str </span><span style="color: #007700">.= </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">27</span><span style="color: #007700">); </span><span style="color: #FF8000">/* 在 $str 后边增加换码符 */<br /><br />/* 通常这样更有用 */<br /><br /></span><span style="color: #0000BB">$str </span><span style="color: #007700">= </span><span style="color: #0000BB">sprintf</span><span style="color: #007700">(</span><span style="color: #DD0000">"The string ends in escape: %c"</span><span style="color: #007700">, </span><span style="color: #0000BB">27</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.chr-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="sprintf.html" class="function" rel="rdfs-seeAlso">sprintf()</a> - Return a formatted string</span> 如何使用格式字符串 <em>%c</em>。</li>
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<li class="member"><span class="function"><a href="ord.html" class="function">ord()</a></span></li>
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<li class="member">可以在此处找到 ASCII 码表：<a href="http://www.asciitable.com" class="link external">» http://www.asciitable.com</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> |