PHP图片上传类（支持自定义路径、大小、文件名称、缩略图）

<?php  class pic_upload{      var $FormName; //文件域名称      var $Directroy; //上传至目录      var $MaxSize; //最大上传大小      var $CanUpload; //是否可以上传      var $doUpFile; //上传的文件名      var $sm_File; //缩略图名称      var $Error;   //错误参数         function ieb_upload($formName='', $dirPath='', $maxSize=2097152) //(1024*2)*1024=2097152 就是 2M      {          global $FormName, $Directroy, $MaxSize, $CanUpload, $Error, $doUpFile, $sm_File;          //初始化各种参数          $FormName = $formName;          $MaxSize = $maxSize;          $CanUpload = true;          $doUpFile = '';          $sm_File = '';          $Error = 0;             if ($formName == ''){              $CanUpload = false;              $Error = 1;              break;          }             if ($dirPath == ''){              $Directroy = $dirPath;          }else{              $Directroy = $dirPath.'/';          }      }         //检查文件是否存在      function scanFile()      {          global $FormName, $Error, $CanUpload;             if ($CanUpload){                 $scan = is_readable($_FILES[$FormName]['name']);                 if ($scan){                  $Error = 2;              }                 return $scan;          }      }            //获取文件大小      function getSize($format = 'B')      {          global $FormName, $Error, $CanUpload;             if ($CanUpload){                 if ($_FILES[$FormName]['size'] == 0){                  $Error = 3;                  $CanUpload = false;              }                 switch ($format){                  case 'B':                      return $_FILES[$FormName]['size'];                      break;                     case 'M':                      return ($_FILES[$FormName]['size'])/(1024*1024);              }             }      }         //获取文件类型      function getExt()      {          global $FormName, $Error, $CanUpload;             if ($CanUpload){              $ext=$_FILES[$FormName]['name'];              $extStr=explode('.',$ext);              $count=count($extStr)-1;          }          return $extStr[$count];      }         //获取文件名称      function getName()      {          global $FormName, $CanUpload;             if ($CanUpload){              return $_FILES[$FormName]['name'];          }      }         //新建文件名      function newName()      {          global $CanUpload, $FormName;             if ($CanUpload){              $FullName=$_FILES[$FormName]['name'];              $extStr=explode('.',$FullName);              $count=count($extStr)-1;              $ext = $extStr[$count];                 return date('YmdHis').rand(0,9).'.'.$ext;          }      }         //上传文件      function upload($fileName = '')      {          global $FormName, $Directroy, $CanUpload, $Error, $doUpFile;             if ($CanUpload){              if ($_FILES[$FormName]['size'] == 0){                  $Error = 3;                  $CanUpload = false;                  return $Error;                  break;              }          }             if($CanUpload){                 if ($fileName == ''){                  $fileName = $_FILES[$FormName]['name'];              }                 $doUpload=@copy($_FILES[$FormName]['tmp_name'], $Directroy.$fileName);                 if($doUpload)              {                  $doUpFile = $fileName;                  chmod($Directroy.$fileName, 0777);                  return true;              }else{                  $Error = 4;                  return $Error;              }          }      }         //创建图片缩略图      function thumb($dscChar='',$width=150,$height=113)      {          global $CanUpload, $Error, $Directroy, $doUpFile, $sm_File;             if ($CanUpload && $doUpFile != ''){              $srcFile = $doUpFile;                 if ($dscChar == ''){                  $dscChar = 'sm_';              }                 $dscFile = $Directroy.$dscChar.$srcFile;              $data = getimagesize($Directroy.$srcFile,&$info);                 switch ($data[2]) {                  case 1:                      $im = @imagecreatefromgif($Directroy.$srcFile);                      break;                     case 2:                      $im = @imagecreatefromjpeg($Directroy.$srcFile);                      break;                     case 3:                      $im = @imagecreatefrompng($Directroy.$srcFile);                      break;              }                 $srcW=imagesx($im);              $srcH=imagesy($im);              $ni=imagecreatetruecolor($width,$height);              imagecopyresized($ni,$im,0,0,0,0,$width,$height,$srcW,$srcH);              $cr = imagejpeg($ni,$dscFile);              chmod($dscFile, 0777);                 if ($cr){                  $sm_File = $dscFile;                  return true;              }else{                  $Error = 5;                  return $Error;              }          }      }         //显示错误参数      function Err(){          global $Error;          return $Error;      }         //上传后的文件名      function UpFile(){          global $doUpFile, $Error;          if ($doUpFile != ''){              return $doUpFile;          }else{              $Error = 6;          }      }         //上传文件的路径      function filePath(){          global $Directroy, $doUpFile, $Error;          if ($doUpFile != ''){              return $Directroy.$doUpFile;          }else{              $Error = 6;          }      }         //缩略图文件名称      function thumbMap(){          global $sm_File, $Error;          if ($sm_File != ''){              return $sm_File;          }else{              $Error = 6;          }      }         //显示版本信息      function ieb_version(){          return 'IEB_UPLOAD CLASS Ver 1.1';      }  }  ?>
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PHP图片上传类（支持自定义路径、大小、文件名称、缩略图）
