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128 lines
7.2 KiB
HTML
128 lines
7.2 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>反引用一个引用字符串</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.stripslashes" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">stripslashes</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">stripslashes</span> — <span class="dc-title">反引用一个引用字符串</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.stripslashes-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>stripslashes</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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反引用一个引用字符串。
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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如果 <a href="sybase.configuration.html#ini.magic-quotes-sybase" class="link">magic_quotes_sybase</a> 项开启，反斜线将被去除，但是两个反斜线将会被替换成一个。
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</p>
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</p></blockquote>
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<p class="para">
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一个使用范例是使用 PHP 检测 <a href="info.configuration.html#ini.magic-quotes-gpc" class="link">magic_quotes_gpc</a> 配置项的 <em>开启</em>情况（在 PHP 5.4之 前默认是开启的）并且你不需要将数据插入到一个需要转义的位置（例如数据库）。例如，你只是简单地将表单数据直接输出。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.stripslashes-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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输入字符串。
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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.stripslashes-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回一个去除转义反斜线后的字符串（<em>\'</em> 转换为 <em>'</em> 等等）。双反斜线（<em>\\</em>）被转换为单个反斜线（<em>\</em>）。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.stripslashes-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-5967">
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<p><strong>Example #1 <span class="function"><strong>stripslashes()</strong></span> 范例</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 />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">"Is your name O\'reilly?"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// 输出: Is your name O'reilly?<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">stripslashes</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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<span class="function"><strong>stripslashes()</strong></span> 是非递归的。如果你想要在多维数组中使用该函数，你需要使用递归函数。
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</p>
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</p></blockquote>
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<p class="para">
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<div class="example" id="example-5968">
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<p><strong>Example #2 对数组使用 <span class="function"><strong>stripslashes()</strong></span></strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">stripslashes_deep</span><span style="color: #007700">(</span><span style="color: #0000BB">$value</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">$value </span><span style="color: #007700">= </span><span style="color: #0000BB">is_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$value</span><span style="color: #007700">) ?<br /> </span><span style="color: #0000BB">array_map</span><span style="color: #007700">(</span><span style="color: #DD0000">'stripslashes_deep'</span><span style="color: #007700">, </span><span style="color: #0000BB">$value</span><span style="color: #007700">) :<br /> </span><span style="color: #0000BB">stripslashes</span><span style="color: #007700">(</span><span style="color: #0000BB">$value</span><span style="color: #007700">);<br /><br /> return </span><span style="color: #0000BB">$value</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// 范例<br /></span><span style="color: #0000BB">$array </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"f\\'oo"</span><span style="color: #007700">, </span><span style="color: #DD0000">"b\\'ar"</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"fo\\'o"</span><span style="color: #007700">, </span><span style="color: #DD0000">"b\\'ar"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$array </span><span style="color: #007700">= </span><span style="color: #0000BB">stripslashes_deep</span><span style="color: #007700">(</span><span style="color: #0000BB">$array</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// 输出<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$array</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 class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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Array
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(
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[0] => f'oo
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[1] => b'ar
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[2] => Array
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(
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[0] => fo'o
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[1] => b'ar
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)
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)
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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.stripslashes-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="addslashes.html" class="function" rel="rdfs-seeAlso">addslashes()</a> - 使用反斜线引用字符串</span></li>
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<li class="member"><span class="function"><a href="get_magic_quotes_gpc.html" class="function" rel="rdfs-seeAlso">get_magic_quotes_gpc()</a> - 获取当前 magic_quotes_gpc 的配置选项设置</span></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> |