<?php if(!function_exists("remote_filesize")){ /** * 获取远程或本地文件信息 * @param string $strUrl 远程文件或本地文件地址 * @param integer $intType 调用方式(1:get_headers 2:fsocketopen 3:curl 4:本地文件) * @param array $arrOptional * @return array * @author mengdj<[email protected]> */ function remote_filesize($strUrl,$intType=1,$arrOptional=array()){ $arrRet=array( "length"=>0, //大小,字节为单位 "mime"=>"", //mime类型 "filename"=>"", //文件名 "status"=>0 //状态码 ); switch($intType){ case 1: //利用get_headers函数 if(($arrTmp=get_headers($strUrl,true))){ $arrRet=array("length"=>$arrTmp[‘Content-Length‘],"mime"=>$arrTmp[‘Content-Type‘]); if(preg_match(‘/filename=\"(.*)\"/si‘,$arrTmp[‘Content-Disposition‘],$arr)){ $arrRet["filename"]=$arr[1]; } if(preg_match(‘/\s(\d+)\s/‘,$arrTmp[0],$arr)){ $arrRet["status"]=$arr[1]; } } break; case 2: //利用fsocket if(($arrUrl=parse_url($strUrl))){ if($fp[email protected]fsockopen($arrUrl[‘host‘],empty($arrUrl[‘port‘])?80:$arrUrl[‘port‘],$error)){ @fputs($fp,"GET ".(empty($arrUrl[‘path‘])?‘/‘:$arrUrl[‘path‘])." HTTP/1.1\r\n"); @fputs($fp,"Host: $arrUrl[host]\r\n"); @fputs($fp,"Connection: Close\r\n\r\n"); while(!feof($fp)){ $tmp=fgets($fp); if(trim($tmp)==‘‘){ //此行代码只读到头信息即可 break; }else{ (preg_match(‘/(HTTP.*)(\s\d{3}\s)/‘,$tmp,$arr))&&$arrRet[‘status‘]=trim($arr[2]); (preg_match(‘/Content-Length:(.*)/si‘,$tmp,$arr))&&$arrRet[‘length‘]=trim($arr[1]); (preg_match(‘/Content-Type:(.*)/si‘,$tmp,$arr))&&$arrRet[‘mime‘]=trim($arr[1]); (preg_match(‘/filename=\"(.*)\"/si‘,$tmp,$arr))&&$arrRet[‘filename‘]=trim($arr[1]); } } @fclose($fp); } } break; case 3: //利用curl if(($ch=curl_init($strUrl))){ curl_setopt($ch,CURLOPT_HEADER,1); curl_setopt($ch,CURLOPT_NOBODY,1); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); if(isset($arrOptional[‘user‘])&&isset($arrOptional[‘password‘])){ $headers=array(‘Authorization: Basic ‘.base64_encode($arrOptional[‘user‘].‘:‘.$arrOptional[‘password‘])); curl_setopt($ch,CURLOPT_HTTPHEADER,$headers); } $tmp=curl_exec($ch); curl_close($ch); (preg_match(‘/Content-Length:\s([0-9].+?)\s/‘,$tmp,$arr))&&$arrRet[‘length‘]=trim($arr[1]); (preg_match(‘/Content-Type:\s(.*)\s/‘,$tmp,$arr))&&$arrRet[‘mime‘]=trim($arr[1]); (preg_match(‘/filename=\"(.*)\"/i‘,$tmp,$arr))&&$arrRet[‘filename‘]=trim($arr[1]); (preg_match(‘/(HTTP.*)(\s\d{3}\s)/‘,$tmp,$arr))&&$arrRet[‘status‘]=trim($arr[2]); } break; case 4: //本地处理 if(file_exists($strUrl)) { $arrRet=array( "length"=>filesize($strUrl), "mime" =>mime_content_type($strUrl), "filename"=>basename($strUrl), "status"=>200 ); }else{ $arrRet=array( "length"=>0, "mime" =>‘‘, "filename"=>basename($strUrl), "status"=>404 ); } break; } if(isset($arrOptional[‘getimagesize‘])&&$arrRet[‘status‘]==‘200‘){ if(($arrTmp=@getimagesize($strUrl))){ $arrRet[‘width‘]=$arrTmp[0]; $arrRet[‘height‘]=$arrTmp[1]; $arrRet[‘type‘]=$arrTmp[2]; $arrRet[‘tag‘]=$arrTmp[3]; $arrRet[‘bits‘]=$arrTmp[‘bits‘]; $arrRet[‘channels‘]=$arrTmp[‘channels‘]; !isset($arrRet[‘mime‘])&&$arrRet[‘mime‘]=$arrTmp[‘mime‘]; } } return $arrRet; } }
原文地址:https://www.cnblogs.com/kynewu/p/8944004.html
时间: 2024-11-05 21:59:03