PHP HTTP リクエストクラス、GET、POST、Multipart/form-data をサポート

HttpRequest.class.php

<?php
/** HttpRequest class, HTTP请求类，支持GET,POST,Multipart/form-data
*   Date:   2013-09-25
*   Author: fdipzone
*   Ver:    1.0
*
*   Func:
*   public  setConfig     设置连接参数
*   public  setFormdata   设置表单数据
*   public  setFiledata   设置文件数据
*   public  send          发送数据
*   private connect       创建连接
*   private disconnect    断开连接
*   private sendGet       get 方式,处理发送的数据,不会处理文件数据
*   private sendPost      post 方式,处理发送的数据
*   private sendMultipart multipart 方式,处理发送的数据,发送文件推荐使用此方式
*/

class HttpRequest{ // class start

    private $_ip = &#39;&#39;;
    private $_host = &#39;&#39;;
    private $_url = &#39;&#39;;
    private $_port = &#39;&#39;;
    private $_errno = &#39;&#39;;
    private $_errstr = &#39;&#39;;
    private $_timeout = 15;
    private $_fp = null;
    
    private $_formdata = array();
    private $_filedata = array();


    // 设置连接参数
    public function setConfig($config){
        $this->_ip = isset($config[&#39;ip&#39;])? $config[&#39;ip&#39;] : &#39;&#39;;
        $this->_host = isset($config[&#39;host&#39;])? $config[&#39;host&#39;] : &#39;&#39;;
        $this->_url = isset($config[&#39;url&#39;])? $config[&#39;url&#39;] : &#39;&#39;;
        $this->_port = isset($config[&#39;port&#39;])? $config[&#39;port&#39;] : &#39;&#39;;
        $this->_errno = isset($config[&#39;errno&#39;])? $config[&#39;errno&#39;] : &#39;&#39;;
        $this->_errstr = isset($config[&#39;errstr&#39;])? $config[&#39;errstr&#39;] : &#39;&#39;;
        $this->_timeout = isset($confg[&#39;timeout&#39;])? $confg[&#39;timeout&#39;] : 15;

        // 如没有设置ip，则用host代替
        if($this->_ip==&#39;&#39;){
            $this->_ip = $this->_host;
        }
    }


    // 设置表单数据
    public function setFormData($formdata=array()){
        $this->_formdata = $formdata;
    }


    // 设置文件数据
    public function setFileData($filedata=array()){
        $this->_filedata = $filedata;
    }


    // 发送数据
    public function send($type=&#39;get&#39;){

        $type = strtolower($type);

        // 检查发送类型
        if(!in_array($type, array(&#39;get&#39;,&#39;post&#39;,&#39;multipart&#39;))){
            return false;
        }

        // 检查连接
        if($this->connect()){

            switch($type){
                case &#39;get&#39;:
                    $out = $this->sendGet();
                    break;

                case &#39;post&#39;:
                    $out = $this->sendPost();
                    break;

                case &#39;multipart&#39;:
                    $out = $this->sendMultipart();
                    break;
            }

            // 空数据
            if(!$out){
                return false;
            }

            // 发送数据
            fputs($this->_fp, $out);

            // 读取返回数据
            $response = &#39;&#39;;

            while($row = fread($this->_fp, 4096)){
                $response .= $row;
            }

            // 断开连接
            $this->disconnect();

            $pos = strpos($response, "\r\n\r\n");
            $response = substr($response, $pos+4);

            return $response;

        }else{
            return false;
        }
    }


    // 创建连接
    private function connect(){
        $this->_fp = fsockopen($this->_ip, $this->_port, $this->_errno, $this->_errstr, $this->_timeout);
        if(!$this->_fp){
            return false;
        }
        return true;
    }


    // 断开连接
    private function disconnect(){
        if($this->_fp!=null){
            fclose($this->_fp);
            $this->_fp = null;
        }
    }


    // get 方式,处理发送的数据,不会处理文件数据
    private function sendGet(){

        // 检查是否空数据
        if(!$this->_formdata){
            return false;
        }

        // 处理url
        $url = $this->_url.&#39;?&#39;.http_build_query($this->_formdata);
        
        $out = "GET ".$url." http/1.1\r\n";
        $out .= "host: ".$this->_host."\r\n";
        $out .= "connection: close\r\n\r\n";

        return $out;
    }


    // post 方式,处理发送的数据
    private function sendPost(){

        // 检查是否空数据
        if(!$this->_formdata && !$this->_filedata){
            return false;
        }

        // form data
        $data = $this->_formdata? $this->_formdata : array();

        // file data
        if($this->_filedata){
            foreach($this->_filedata as $filedata){
                if(file_exists($filedata[&#39;path&#39;])){
                    $data[$filedata[&#39;name&#39;]] = file_get_contents($filedata[&#39;path&#39;]);
                }
            }
        }

        if(!$data){
            return false;
        }

        $data = http_build_query($data);

        $out = "POST ".$this->_url." http/1.1\r\n";
        $out .= "host: ".$this->_host."\r\n";
        $out .= "content-type: application/x-www-form-urlencoded\r\n";
        $out .= "content-length: ".strlen($data)."\r\n";
        $out .= "connection: close\r\n\r\n";
        $out .= $data;

        return $out;
    }


    // multipart 方式,处理发送的数据,发送文件推荐使用此方式
    private function sendMultipart(){

        // 检查是否空数据
        if(!$this->_formdata && !$this->_filedata){
            return false;
        }

        // 设置分割标识
        srand((double)microtime()*1000000);
        $boundary = &#39;---------------------------&#39;.substr(md5(rand(0,32000)),0,10);

        $data = &#39;--&#39;.$boundary."\r\n";

        // form data
        $formdata = &#39;&#39;;

        foreach($this->_formdata as $key=>$val){
            $formdata .= "content-disposition: form-data; name=\"".$key."\"\r\n";
            $formdata .= "content-type: text/plain\r\n\r\n";
            if(is_array($val)){
                $formdata .= json_encode($val)."\r\n"; // 数组使用json encode后方便处理
            }else{
                $formdata .= rawurlencode($val)."\r\n";
            }
            $formdata .= &#39;--&#39;.$boundary."\r\n";
        }

        // file data
        $filedata = &#39;&#39;;

        foreach($this->_filedata as $val){
            if(file_exists($val[&#39;path&#39;])){
                $filedata .= "content-disposition: form-data; name=\"".$val[&#39;name&#39;]."\"; filename=\"".$val[&#39;filename&#39;]."\"\r\n";
                $filedata .= "content-type: ".mime_content_type($val[&#39;path&#39;])."\r\n\r\n";
                $filedata .= implode(&#39;&#39;, file($val[&#39;path&#39;]))."\r\n";
                $filedata .= &#39;--&#39;.$boundary."\r\n";
            }
        }

        if(!$formdata && !$filedata){
            return false;
        }

        $data .= $formdata.$filedata."--\r\n\r\n";

        $out = "POST ".$this->_url." http/1.1\r\n";
        $out .= "host: ".$this->_host."\r\n";
        $out .= "content-type: multipart/form-data; boundary=".$boundary."\r\n";
        $out .= "content-length: ".strlen($data)."\r\n";
        $out .= "connection: close\r\n\r\n";
        $out .= $data;

        return $out;
    }

} // class end

?>

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上記は、GET、POST、Multipart/form-data コンテンツをサポートする php HTTP リクエストクラスです。その他の関連コンテンツについては、PHP 中国語 Web サイト (www.php.cn) に注目してください。

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