php封装的curl请求方法

functioncurlGet($url,array$header=array(),$timeout=5)
{
$ch=curl_init();//初始化
curl_setopt($ch,CURLOPT_URL,$url);//抓取指定网页
curl_setopt($ch,CURLOPT_HEADER,0);//是否显示头信息，1显示，0不显示
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//要求结果为字符串且输出到屏幕上
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);//服务器5秒内没有响应，脚本就会断开连接
//url包含https，不验证证书下同
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0(WindowsNT6.1;WOW64)AppleWebKit/537.36(KHTML,likeGecko)Chrome/服务器托管网64.0.3282.186Safari/537.36');
if(!empty($header)){
curl_setopt($ch,CURLOPT_HTTPHEADER,$header);
curl_setopt($ch,CURLOPT_HEADER,0);//返回response头部信息
}
$file_contents=curl_exec($ch);//运行curl
curl_close($ch);
return$file_contents;
}

functioncurlPost($url,array$params=array(),array$header=array(),$timeout=5)
{
$ch=curl_init();//初始化
curl_setopt($ch,CURLOPT_URL,$url);//抓取指定网页
curl_setopt($ch,CURLOPT_HEADER,0);//是否显示头信息，1显示，0不显示
//curl_setopt($ch,CURLOPT_REFERER,'https://lbs.amap.com/api/webservice/guide/api/weatherinfo/');//伪造referer
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//要求结果为字符串且输出到屏幕上
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
curl_setopt($ch,CURLOPT_POST,1);//post提交方式
//拼接请求参数
$params2='';
foreach($paramsas$k=>$v)
{
$params2.="$k=".urlencode($v)."&";
}
$params2=substr($params2,0,-1);
curl_setopt($ch,CURLOPT_POSTFIELDS,$params2);
//url包含https，不验证证书下同
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0(WindowsNT6.1;WOW64)AppleWebKit/537.36(KHTML,likeGecko)Chrome/64.0.3282.186服务器托管网Safari/537.36');
if(!empty($header)){
curl_setopt($ch,CURLOPT_HTTPHEADER,$header);
curl_setopt($ch,CURLOPT_HEADER,0);//返回response头部信息
}
$data=curl_exec($ch);//运行curl
if($data===false){
echo'
出现错误：'.curl_error($ch);
}
curl_close($ch);
return($data);
}

functioncurlPostJson($url,$params='',array$header=array(),$timeout=5)
{
$ch=curl_init();//初始化
curl_setopt($ch,CURLOPT_URL,$url);//抓取指定网页
curl_setopt($ch,CURLOPT_HEADER,0);//是否显示头信息，1显示，0不显示
//curl_setopt($ch,CURLOPT_REFERER,'https://lbs.amap.com/api/webservice/guide/api/weatherinfo/');//伪造referer
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//要求结果为字符串且输出到屏幕上
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
curl_setopt($ch,CURLOPT_POST,1);//post提交方式
curl_setopt($ch,CURLOPT_POSTFIELDS,$params);
//url包含https，不验证证书下同
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0(WindowsNT6.1;WOW64)AppleWebKit/537.36(KHTML,likeGecko)Chrome/64.0.3282.186Safari/537.36');
if(!empty($header)){
curl_setopt($ch,CURLOPT_HTTPHEADER,$header);
curl_setopt($ch,CURLOPT_HEADER,0);//返回response头部信息
}
$data=curl_exec($ch);//运行curl
if($data===false){
echo'
出现错误：'.curl_error($ch);
}
curl_close($ch);
return($data);
}

function curlGet($url) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
    curl_setopt($ch, CURLOPT_HEADER, true);
    //函数中加入下面这条语句
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);        
    return curl_exec($ch);
}