PHP语言中php curl的几种应用方式_PHP教程
- WBOY原创
- 2016-07-15 13:28:29843浏览
我们通过对1. php curl的默认调用方法，get方式访问url
<ol class="dp-xml">
<li class="alt"><span><span>.... </span></span></li>
<li class="">
<span> $</span><span class="attribute"><font color="#ff0000">ch</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">curl_init</font></span><span>(); </span>
</li>
<li class="alt"><span> curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//设置http头 </span></li>
<li class=""><span> curl_setopt($ch, CURLOPT_ENCODING, "gzip" ); <br>//设置为客户端支持gzip压缩 </span></li>
<li class="alt"><span> curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30 ); <br>//设置连接等待时间 </span></li>
<li class=""><span> curl_setopt($ch, CURLOPT_URL, $url ); </span></li>
<li class="alt"><span> curl_exec( $ch ); </span></li>
<li class="">
<span> if ($</span><span class="attribute"><font color="#ff0000">error</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">curl_error</font></span><span>($ch) ) { </span>
</li>
<li class="alt"><span> //出错处理 </span></li>
<li class=""><span> return -1; </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> fclose($fp); </span></li>
<li class="alt"><span> </span></li>
<li class="">
<span> $</span><span class="attribute"><font color="#ff0000">curl_code</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">curl_getinfo</font></span><span>($ch, CURLINFO_HTTP_CODE);<br>//获取http返回值 </span>
</li>
<li class="alt">
<span> if( $</span><span class="attribute"><font color="#ff0000">curl_code</font></span><span> == 200 ) { </span>
</li>
<li class=""><span> //正常访问url </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> //异常 </span></li>
<li class="alt"><span>.... </span></li>
</ol>
2. 设置http header支持php curl访问lighttpd服务器
<ol class="dp-xml"><li class="alt"><span><span>$header[]= 'Expect:'; </span></span></li></ol>
3. 设置curl，只获取http header，不获取body：
<ol class="dp-xml"> <li class="alt"><span><span>curl_setopt($ch, CURLOPT_HEADER, 1); </span></span></li> <li class=""><span>curl_setopt($ch, CURLOPT_NOBODY, 1); </span></li> </ol>
或者只获取body：
<ol class="dp-xml"> <li class="alt"><span><span>curl_setopt($ch, CURLOPT_HEADER, 0); <br>// make sure we get the body </span></span></li> <li class=""><span>curl_setopt($ch, CURLOPT_NOBODY, 0); </span></li> </ol>
4. 访问虚拟主机，需设置Host
<ol class="dp-xml"><li class="alt"><span><span>$header[]= 'Host: '.$host; </span></span></li></ol>
5. 使用post, put, delete等REStful方式访问url
<ol class="dp-xml"> <li class="alt"><span><span>post: </span></span></li> <li class=""><span> </span></li> <li class="alt"><span> curl_setopt($ch, CURLOPT_POST, 1 ); </span></li> <li class=""><span> </span></li> <li class="alt"><span>put, delete: </span></li> <li class=""><span> </span></li> <li class="alt"><span> curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE"); <br>//或者PUT，需要服务器支持这些方法。 </span></li> </ol>
6. php curl保存下载内容为文件
<ol class="dp-xml"><li class="alt"><span><span>curl_setopt($ch, CURLOPT_FILE, $fp); </span></span></li></ol>
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