mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-18 05:26:57 +08:00
125 lines
6.2 KiB
HTML
125 lines
6.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||
<html>
|
||
<head>
|
||
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
|
||
<title>使字符串小写</title>
|
||
</head>
|
||
<body class="docs"><div id="layout">
|
||
<div id="layout-content"><div id="function.mb-strtolower" class="refentry">
|
||
<div class="refnamediv">
|
||
<h1 class="refname">mb_strtolower</h1>
|
||
<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mb_strtolower</span> — <span class="dc-title">使字符串小写</span></p>
|
||
|
||
</div>
|
||
|
||
<div class="refsect1 description" id="refsect1-function.mb-strtolower-description">
|
||
<h3 class="title">说明</h3>
|
||
<div class="methodsynopsis dc-description">
|
||
<span class="methodname"><strong>mb_strtolower</strong></span>
|
||
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$str</code></span>
|
||
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_internal_encoding()</span></span>
|
||
] ) : <span class="type">string</span></div>
|
||
|
||
<p class="para rdfs-comment">
|
||
返回所有字母字符转换成小写的 <code class="parameter">str</code>。
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 parameters" id="refsect1-function.mb-strtolower-parameters">
|
||
<h3 class="title">参数</h3>
|
||
<p class="para">
|
||
<dl>
|
||
|
||
|
||
<dt>
|
||
<code class="parameter">str</code></dt>
|
||
|
||
<dd>
|
||
|
||
<p class="para">
|
||
要被小写的<span class="type"><span class="type 字符串">字符串</span></span>。
|
||
</p>
|
||
</dd>
|
||
|
||
|
||
|
||
<dt>
|
||
<code class="parameter">encoding</code></dt>
|
||
|
||
<dd>
|
||
|
||
<p class="para"><code class="parameter">encoding</code>
|
||
参数为字符编码。如果省略，则使用内部字符编码。</p>
|
||
</dd>
|
||
|
||
|
||
</dl>
|
||
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 returnvalues" id="refsect1-function.mb-strtolower-returnvalues">
|
||
<h3 class="title">返回值</h3>
|
||
<p class="para">
|
||
所有字母字符已被转换成小写的 <code class="parameter">str</code>。
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 unicode" id="refsect1-function.mb-strtolower-unicode">
|
||
<h3 class="title">Unicode</h3>
|
||
<p class="para">
|
||
更多关于 Unicode 属性的信息，请参见 <a href="http://www.unicode.org/unicode/reports/tr21/" class="link external">» http://www.unicode.org/unicode/reports/tr21/</a>。
|
||
</p>
|
||
<p class="para">
|
||
和 <span class="function"><a href="strtolower.html" class="function">strtolower()</a></span> 不同的是，“字母”字符的检测是根据字符的 Unicode 属性。
|
||
因此函数的行为不会受语言设置的影响，能偶转换任意具有“字母”属性的字符，例如元音变音 A（Ä）。
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 examples" id="refsect1-function.mb-strtolower-examples">
|
||
<h3 class="title">范例</h3>
|
||
<p class="para">
|
||
<div class="example" id="example-3193">
|
||
<p><strong>Example #1 <span class="function"><strong>mb_strtolower()</strong></span> 例子</strong></p>
|
||
<div class="example-contents">
|
||
<div class="phpcode"><pre><span style="color: #000000">
|
||
<span style="color: #0000BB"><?php<br />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">"Mary Had A Little Lamb and She LOVED It So"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$str </span><span style="color: #007700">= </span><span style="color: #0000BB">mb_strtolower</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$str</span><span style="color: #007700">; </span><span style="color: #FF8000">// 输出： mary had a little lamb and she loved it so<br /></span><span style="color: #0000BB">?></span>
|
||
</span>
|
||
</pre></div>
|
||
</div>
|
||
|
||
</div>
|
||
</p>
|
||
|
||
<p class="para">
|
||
<div class="example" id="example-3194">
|
||
<p><strong>Example #2 非拉丁 UTF-8 文本的 <span class="function"><strong>mb_strtolower()</strong></span> 例子</strong></p>
|
||
<div class="example-contents">
|
||
<div class="phpcode"><pre><span style="color: #000000">
|
||
<span style="color: #0000BB"><?php<br />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">"Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$str </span><span style="color: #007700">= </span><span style="color: #0000BB">mb_strtolower</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">, </span><span style="color: #DD0000">'UTF-8'</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$str</span><span style="color: #007700">; </span><span style="color: #FF8000">// 输出 τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός<br /></span><span style="color: #0000BB">?></span>
|
||
</span>
|
||
</pre></div>
|
||
</div>
|
||
|
||
</div>
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 seealso" id="refsect1-function.mb-strtolower-seealso">
|
||
<h3 class="title">参见</h3>
|
||
<p class="para">
|
||
<ul class="simplelist">
|
||
<li class="member"><span class="function"><a href="mb_strtoupper.html" class="function" rel="rdfs-seeAlso">mb_strtoupper()</a> - 使字符串大写</span></li>
|
||
<li class="member"><span class="function"><a href="mb_convert_case.html" class="function" rel="rdfs-seeAlso">mb_convert_case()</a> - 对字符串进行大小写转换</span></li>
|
||
<li class="member"><span class="function"><a href="strtolower.html" class="function" rel="rdfs-seeAlso">strtolower()</a> - 将字符串转化为小写</span></li>
|
||
</ul>
|
||
</p>
|
||
</div>
|
||
|
||
|
||
</div></div></div></body></html> |