CURL

• curl是利用URL语法在命令行方式下工作的开源文件传输工具。它被广泛应用在Unix、多种Linux发行版中，并且有DOS和Win32、Win64下的移植版本。
• CURL课程
• CURL参数

<?php
$curl = curl_init('https://www.baidu.com/');//初始化
curl_exec($curl);//执行
curl_close($curl);//关闭

<?php
$curl = curl_init();
curl_setopt($curl,CURLOPT_URL,"https://www.baidu.com/");//设置url为
curl_setopt($curl,CURLOPT_RETURNTRANSFER,true);//不直接打印出来
$output = curl_exec($curl);//内容赋给一个变量
curl_close($curl);
echo str_replace('百度','屌丝',$output);

• WebService

<?php
$data = sprintf('<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <getWeatherbyCityName xmlns="http://WebXml.com.cn/">
      <theCityName>%s</theCityName>
    </getWeatherbyCityName>
  </soap:Body>
</soap:Envelope>','北京');
$curlobj = curl_init(); 
curl_setopt($curlobj, CURLOPT_URL, "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx");  
curl_setopt($curlobj, CURLOPT_POST, 1);  
curl_setopt($curlobj, CURLOPT_HEADER, 0); 
curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, 1);  
curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data);  
curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("Content-Type: application/soap+xml; charset=utf-8", 
    "Content-length: ".strlen($data),
    "SOAPAction:\"http://WebXml.com.cn/getWeatherbyCityName\"")); 
$rtn = curl_exec($curlobj);   
if(!curl_errno($curlobj)){
    $info = curl_getinfo($curlobj); 
    print_r($info);
    echo "RETURN: " . $rtn;  
} else {
  echo 'Curl error: ' . curl_error($curlobj);
}
curl_close($curlobj);
?>