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https://github.com/fofolee/uTools-Manuals.git
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102 lines
5.8 KiB
HTML
102 lines
5.8 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>解码已编码的 URL 字符串</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.urldecode" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">urldecode</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">urldecode</span> — <span class="dc-title">解码已编码的 URL 字符串</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.urldecode-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>urldecode</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$str</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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解码给出的已编码字符串中的任何
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<em>%<span class="replaceable">##</span></em>。
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加号（'<em>+</em>'）被解码成一个空格字符。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.urldecode-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">str</code></dt>
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<dd>
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<p class="para">
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要解码的字符串。
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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.urldecode-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回解码后的字符串。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.urldecode-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-4896">
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<p><strong>Example #1 <span class="function"><strong>urldecode()</strong></span> 示例</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 />$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"my=apples&are=green+and+red"</span><span style="color: #007700">;<br /><br />foreach (</span><span style="color: #0000BB">explode</span><span style="color: #007700">(</span><span style="color: #DD0000">'&'</span><span style="color: #007700">, </span><span style="color: #0000BB">$query</span><span style="color: #007700">) as </span><span style="color: #0000BB">$chunk</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$param </span><span style="color: #007700">= </span><span style="color: #0000BB">explode</span><span style="color: #007700">(</span><span style="color: #DD0000">"="</span><span style="color: #007700">, </span><span style="color: #0000BB">$chunk</span><span style="color: #007700">);<br /><br /> if (</span><span style="color: #0000BB">$param</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Value for parameter \"%s\" is \"%s\"<br/>\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">urldecode</span><span style="color: #007700">(</span><span style="color: #0000BB">$param</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]), </span><span style="color: #0000BB">urldecode</span><span style="color: #007700">(</span><span style="color: #0000BB">$param</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]));<br /> }<br />}<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.urldecode-notes">
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<h3 class="title">注释</h3>
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<div class="warning"><strong class="warning">Warning</strong>
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<p class="para">
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超全局变量 <var class="varname"><var class="varname"><a href="reserved.variables.get.html" class="classname">$_GET</a></var></var> 和 <var class="varname"><var class="varname"><a href="reserved.variables.request.html" class="classname">$_REQUEST</a></var></var> 已经被解码了。对 <var class="varname"><var class="varname"><a href="reserved.variables.get.html" class="classname">$_GET</a></var></var> 或 <var class="varname"><var class="varname"><a href="reserved.variables.request.html" class="classname">$_REQUEST</a></var></var> 里的元素使用 <span class="function"><strong>urldecode()</strong></span> 将会导致不可预计和危险的结果。
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</p>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.urldecode-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="urlencode.html" class="function" rel="rdfs-seeAlso">urlencode()</a> - 编码 URL 字符串</span></li>
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<li class="member"><span class="function"><a href="rawurlencode.html" class="function" rel="rdfs-seeAlso">rawurlencode()</a> - 按照 RFC 3986 对 URL 进行编码</span></li>
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<li class="member"><span class="function"><a href="rawurldecode.html" class="function" rel="rdfs-seeAlso">rawurldecode()</a> - 对已编码的 URL 字符串进行解码</span></li>
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<li class="member"><a href="http://www.faqs.org/rfcs/rfc3986" class="link external">» RFC 3986</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> |