简略的php代理 Simple PHP Proxy

实例：http://www.ikeepstudying.com/tools/proxy/

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用 php + mysql 驱动的在线商城系统，我们的目标为中国的中小企业及个人提供最简洁，最安全，最高效的在线商城解决方案，使用了自建的会员积分折扣功能，不同的会员组有不同的折扣，让您的商店吸引更多的后续客户。 系统自动加分处理功能，自动处理会员等级，免去人工处理的工作量，让您的商店运作起来更方便省事 采用了自建的直接模板技术，免去了模板解析时间，提高了代码利用效率 独立开发的购物车系统，使用最

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index.php

 
  
          Remote URL            
  
    ..or try these sample Remote URLs:    GitHub,    a sample JSON (not JSONP) request,    a 404 error page  
  
                Native (disabled by default)      
  
                JSON      
  
    
                      Full Headers          
    
                      Full Status          
  
  
Request URL
N/A, click Submit!
Simple PHP Proxy response
N/A, click Submit!

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proxy.php

立即学习“PHP免费学习笔记（深入）”；

 and //     are disabled by default, see  for more information.//   callback - If specified, the response JSON will be wrapped in this named//     function call. This parameter and  are disabled by//     default, see  for more information.//   user_agent - This value will be sent to the remote URL request as the//     `User-Agent:` HTTP request header. If omitted, the browser user agent//     will be passed through.//   send_cookies - If send_cookies=1, all cookies will be forwarded through to//     the remote URL request.//   send_session - If send_session=1 and send_cookies=1, the SID cookie will be//     forwarded through to the remote URL request.//   full_headers - If a JSON request and full_headers=1, the JSON response will//     contain detailed header information.//   full_status - If a JSON request and full_status=1, the JSON response will//     contain detailed cURL status information, otherwise it will just contain//     the `http_code` property.// // Topic: POST Parameters// // All POST parameters are automatically passed through to the remote URL// request.// // Topic: JSON requests// // This request will return the contents of the specified url in JSON format.// // Request:// // > ba-simple-proxy.php?url=http://example.com/// // Response:// // > { "contents": "...", "headers": {...}, "status": {...} }// // JSON object properties:// //   contents - (String) The contents of the remote URL resource.//   headers - (Object) A hash of HTTP headers returned by the remote URL//     resource.//   status - (Object) A hash of status codes returned by cURL.// // Topic: JSONP requests// // This request will return the contents of the specified url in JSONP format// (but only if $enable_jsonp is enabled in the PHP script).// // Request:// // > ba-simple-proxy.php?url=http://example.com/&callback=foo// // Response:// // > foo({ "contents": "...", "headers": {...}, "status": {...} })// // JSON object properties:// //   contents - (String) The contents of the remote URL resource.//   headers - (Object) A hash of HTTP headers returned by the remote URL//     resource.//   status - (Object) A hash of status codes returned by cURL.// // Topic: Native requests// // This request will return the contents of the specified url in the format it// was received in, including the same content-type and other headers (but only// if $enable_native is enabled in the PHP script).// // Request:// // > ba-simple-proxy.php?url=http://example.com/&mode=native// // Response:// // > ...// // Topic: Notes// // * Assumes magic_quotes_gpc = Off in php.ini// // Topic: Configuration Options// // These variables can be manually edited in the PHP file if necessary.// //   $enable_jsonp - Only enable  if you really need to. If you//     install this script on the same server as the page you're calling it//     from, plain JSON will work. Defaults to false.//   $enable_native - You can enable , but you should only do//     this if you also whitelist specific URLs using $valid_url_regex, to avoid//     possible XSS vulnerabilities. Defaults to false.//   $valid_url_regex - This regex is matched against the url parameter to//     ensure that it is valid. This setting only needs to be used if either//     $enable_jsonp or $enable_native are enabled. Defaults to '/.*/' which//     validates all URLs.// // ############################################################################// Change these configuration options if needed, see above descriptions for info.$enable_jsonp    = false;$enable_native   = false;$valid_url_regex = '/.*/';// ############################################################################$url = $_GET['url'];if ( !$url ) {    // Passed url not specified.  $contents = 'ERROR: url not specified';  $status = array( 'http_code' => 'ERROR' );  } else if ( !preg_match( $valid_url_regex, $url ) ) {    // Passed url doesn't match $valid_url_regex.  $contents = 'ERROR: invalid url';  $status = array( 'http_code' => 'ERROR' );  } else {  $ch = curl_init( $url );    if ( strtolower($_SERVER['REQUEST_METHOD']) == 'post' ) {    curl_setopt( $ch, CURLOPT_POST, true );    curl_setopt( $ch, CURLOPT_POSTFIELDS, $_POST );  }    if ( $_GET['send_cookies'] ) {    $cookie = array();    foreach ( $_COOKIE as $key => $value ) {      $cookie[] = $key . '=' . $value;    }    if ( $_GET['send_session'] ) {      $cookie[] = SID;    }    $cookie = implode( '; ', $cookie );        curl_setopt( $ch, CURLOPT_COOKIE, $cookie );  }    curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );  curl_setopt( $ch, CURLOPT_HEADER, true );  curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );    curl_setopt( $ch, CURLOPT_USERAGENT, $_GET['user_agent'] ? $_GET['user_agent'] : $_SERVER['HTTP_USER_AGENT'] );    list( $header, $contents ) = preg_split( '/([\r\n][\r\n])\\1/', curl_exec( $ch ), 2 );    $status = curl_getinfo( $ch );    curl_close( $ch );}// Split header text into an array.$header_text = preg_split( '/[\r\n]+/', $header );if ( $_GET['mode'] == 'native' ) {  if ( !$enable_native ) {    $contents = 'ERROR: invalid mode';    $status = array( 'http_code' => 'ERROR' );  }    // Propagate headers to response.  foreach ( $header_text as $header ) {    if ( preg_match( '/^(?:Content-Type|Content-Language|Set-Cookie):/i', $header ) ) {      header( $header );    }  }    print $contents;  } else {    // $data will be serialized into JSON data.  $data = array();    // Propagate all HTTP headers into the JSON data object.  if ( $_GET['full_headers'] ) {    $data['headers'] = array();        foreach ( $header_text as $header ) {      preg_match( '/^(.+?):\s+(.*)$/', $header, $matches );      if ( $matches ) {        $data['headers'][ $matches[1] ] = $matches[2];      }    }  }    // Propagate all cURL request / response info to the JSON data object.  if ( $_GET['full_status'] ) {    $data['status'] = $status;  } else {    $data['status'] = array();    $data['status']['http_code'] = $status['http_code'];  }    // Set the JSON data object contents, decoding it from JSON if possible.  $decoded_json = json_decode( $contents );  $data['contents'] = $decoded_json ? $decoded_json : $contents;    // Generate appropriate content-type header.  $is_xhr = strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest';  header( 'Content-type: application/' . ( $is_xhr ? 'json' : 'x-javascript' ) );    // Get JSONP callback.  $jsonp_callback = $enable_jsonp && isset($_GET['callback']) ? $_GET['callback'] : null;    // Generate JSON/JSONP string  $json = json_encode( $data );    print $jsonp_callback ? "$jsonp_callback($json)" : $json;  }

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实例：http://www.ikeepstudying.com/tools/proxy/

原文：http://benalman.com/projects/php-simple-proxy/

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