``` namespace util; class Curl{ protected static $instance=null; public $header=null; public $isOk=null; public $body=null; /*实例*/ private static function init(){ if(!isset(self::$instance)){ self::$instance=new static; } self::$instance->header=null; self::$instance->isOk=null; self::$instance->body=null; return self::$instance; } /** * 请求 * @param string $url * @param array $headers header格式必须为 “键: 值” * @param array $options * @param string $postData * @return \util\Curl */ public static function request($url,$headers=array(),$options=array(),$postData=null){ $instance=self::init(); $headers=is_array($headers)?$headers:array(); $options=is_array($options)?$options:array(); $options['timeout']=intval($options['timeout']); $options['timeout']=$options['timeout']>0?$options['timeout']:20; $ch = curl_init (); curl_setopt ( $ch, CURLOPT_URL, $url ); curl_setopt ( $ch, CURLOPT_TIMEOUT, $options['timeout'] ); curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT , 10 ); curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 ); curl_setopt ( $ch, CURLOPT_HEADER, 1 ); if($options['nobody']){ curl_setopt($ch, CURLOPT_NOBODY, true); } if($options['useragent']){ curl_setopt($ch, CURLOPT_USERAGENT, $options['useragent']); } curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE ); curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE ); if(!empty($headers)&&count($headers)>0){ curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers ); } if(isset($postData)){ curl_setopt ( $ch, CURLOPT_POST, 1 ); if(is_array($postData)){ $postData=http_build_query($postData); } curl_setopt ( $ch, CURLOPT_POSTFIELDS, $postData ); } if(!empty($options['proxy'])&&!empty($options['proxy']['ip'])){ $proxyType=null; switch ($options['proxy']['type']){ case 'socks4':$proxyType=CURLPROXY_SOCKS4;break; case 'socks5':$proxyType=CURLPROXY_SOCKS5;break; default:$proxyType=CURLPROXY_HTTP;break; } curl_setopt($ch, CURLOPT_PROXYTYPE,$proxyType); curl_setopt($ch, CURLOPT_PROXY, $options['proxy']['ip']); curl_setopt($ch, CURLOPT_PROXYPORT, $options['proxy']['port']); if(!empty($options['proxy']['user'])){ curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC); curl_setopt($ch, CURLOPT_PROXYUSERPWD, $options['proxy']['user'].':'.$options['proxy']['pwd']); } } $body = curl_exec ( $ch ); $headerPos=strpos($body, "\r\n\r\n"); if($headerPos!==false){ $headerPos=intval($headerPos)+strlen("\r\n\r\n"); } $headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $headerSize=intval($headerSize); if($headerSize<$headerPos){ $headerSize=$headerPos; } $instance->header = substr($body, 0, $headerSize); $instance->body = substr($body, $headerSize); $code=curl_getinfo($ch,CURLINFO_HTTP_CODE); $code=intval($code); if($code>=200&&$code<300){ $instance->isOk=true; }else{ $instance->isOk=false; } curl_close ( $ch ); return $instance; } public static function head($url,$headers=array(),$options=array()){ $options=is_array($options)?$options:array(); $options['nobody']=1; return self::request($url,$headers,$options); } public static function get($url,$headers=array(),$options=array()){ return self::request($url,$headers,$options); } public static function post($url,$headers=array(),$options=array(),$data=null){ return self::request($url,$headers,$options,$data?$data:''); } } ```