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94 lines
5.0 KiB
HTML
94 lines
5.0 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>初始化 cURL 会话</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.curl-init" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">curl_init</h1>
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<p class="verinfo">(PHP 4 >= 4.0.2, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">curl_init</span> — <span class="dc-title">初始化 cURL 会话</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.curl-init-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>curl_init</strong></span>
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([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$url</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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初始化新的会话，返回 cURL 句柄，供<span class="function"><a href="curl_setopt.html" class="function">curl_setopt()</a></span>、 <span class="function"><a href="curl_exec.html" class="function">curl_exec()</a></span> 和 <span class="function"><a href="curl_close.html" class="function">curl_close()</a></span> 函数使用。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.curl-init-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">url</code></dt>
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<dd>
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<p class="para">
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如果提供了该参数，<strong><code>CURLOPT_URL</code></strong> 选项将会被设置成这个值。你也可以使用<span class="function"><a href="curl_setopt.html" class="function">curl_setopt()</a></span>函数手动地设置这个值。
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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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如果设置了 <a href="ini.core.html#ini.open-basedir" class="link">open_basedir</a>，<em>file</em> 协议会被 cURL 禁用。
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</p>
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</p></blockquote>
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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.curl-init-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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如果成功，返回 cURL 句柄，出错返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.curl-init-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-5242">
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<p><strong>Example #1
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初始化新的 cURL 会话并获取一个网页
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</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">// 创建一个新cURL资源<br /></span><span style="color: #0000BB">$ch </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_init</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// 设置URL和相应的选项<br /></span><span style="color: #0000BB">curl_setopt</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch</span><span style="color: #007700">, </span><span style="color: #0000BB">CURLOPT_URL</span><span style="color: #007700">, </span><span style="color: #DD0000">"http://www.example.com/"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_setopt</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch</span><span style="color: #007700">, </span><span style="color: #0000BB">CURLOPT_HEADER</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// 抓取URL并把它传递给浏览器<br /></span><span style="color: #0000BB">curl_exec</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// 关闭cURL资源，并且释放系统资源<br /></span><span style="color: #0000BB">curl_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch</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.curl-init-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="curl_close.html" class="function" rel="rdfs-seeAlso">curl_close()</a> - 关闭 cURL 会话</span></li>
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<li class="member"><span class="function"><a href="curl_multi_init.html" class="function" rel="rdfs-seeAlso">curl_multi_init()</a> - 返回一个新cURL批处理句柄</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> |