前言

最近自己做了團隊內部的http除錯工具，github開源地址 https://github.com/diandianxiyu/ApiTesting ，通過這個專案又重新操作了PHP的curl函式，通過本篇部落格進行記錄，和大家一起學習~

Code

本程式碼通過PHP7環境執行。

function curl($url, $method=`GET`,$fields = [], $headers=[],$auth = false){
        //如果是get的獲取方式，拼接引數到url上
        if($method == "GET"){
            $fields_string = http_build_query($fields);
            $url=$url."?".$fields_string;
        }
        $curl = curl_init($url); //初始化
        curl_setopt ($curl, CURLOPT_CUSTOMREQUEST, $method ); //設定HTTP請求方式
        curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1");
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_VERBOSE, 1);
        curl_setopt($curl, CURLOPT_HEADER, 1);
        $header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
        $header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
        $header[] = "Cache-Control: max-age=0";
        $header[] = "Connection: keep-alive";
        $header[] = "Keep-Alive: 300";
        $header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
        $header[] = "Accept-Language: en-us,en;q=0.5";
        $header[] = "Pragma: "; // browsers keep this blank.
        curl_setopt($curl, CURLOPT_HTTPHEADER, array_merge($header,$headers)); //和引數中的header一起傳遞過去
        if($auth){
            curl_setopt($curl, CURLOPT_USERPWD, "$auth");
            curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
        }
        if($fields){
            //POST
            if($method == "POST"){//單獨對POST方法設定引數傳遞
                $fields_string = http_build_query($fields);
                curl_setopt($curl, CURLOPT_POST, true);
                curl_setopt($curl, CURLOPT_BINARYTRANSFER, true);
                curl_setopt($curl, CURLOPT_POSTFIELDS, $fields_string);
            }else{
                curl_setopt($curl, CURLOPT_RETURNTRANSFER, true) ;
                curl_setopt($curl, CURLOPT_BINARYTRANSFER, true) ;
            }
        }
        $response = curl_exec($curl); //執行curl
        $header_size = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
        $header_string = substr($response, 0, $header_size);
        $body = substr($response, $header_size);
        $header_rows = explode(PHP_EOL, $header_string);
        foreach($header_rows as $key => $value){
            $header_rows[$key]=trim($header_rows[$key]);
        }
        $i=0;
        foreach((array)$header_rows as $hr){
            $colonpos = strpos($hr, `:`);
            $key = $colonpos !== false ? substr($hr, 0, $colonpos) : (int)$i++;
            $headers[$key] = $colonpos !== false ? trim(substr($hr, $colonpos+1)) : $hr;
        }
        $j=0;
        foreach((array)$headers as $key => $val){
            $vals = explode(`;`, $val);
            if(count($vals) >= 2){
                unset($headers[$key]);
                foreach($vals as $vk => $vv){
                    $equalpos = strpos($vv, `=`);
                    $vkey = $equalpos !== false ? trim(substr($vv, 0, $equalpos)) : (int)$j++;
                    $headers[$key][$vkey] = $equalpos !== false ? trim(substr($vv, $equalpos+1)) : $vv;
                }
            }
        }
        curl_close($curl);
        return array($body, $headers); //最終返回 result[0]為body,result[1]為header
    }

參考資料

http://www.php.net/curl