PHP image upload class can also generate thumbnails and watermark

The code is as follows

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Class Upimages { var $annexfolder = "Upload";//Attachment storage point, default: Annex var $smallfolder = "small";//thumbnail store path, note: Must be a subdirectory under the $annexfolder, default is: smallimg var $markfolder = "Mark";//Watermark Image Store var $upfiletype = "jpg gif png";//type of upload, default: JPG gif png rar zip var $upfilemax = 1024;//Upload size limit, the unit is "KB" and the default is: 1024KB var $fonttype;//font var $maxwidth = 500; Picture Maximum width var $maxheight = 600; Picture Max height function Upimages ($annexfolder, $smallfolder, $includefolder) { $this->annexfolder = $annexfolder; $this->smallfolder = $smallfolder; $this->fonttype = $includefolder. " /04b_08__.ttf "; } function upload ($inputname) { $imagename = time ();//set current times to picture name if (@empty ($_files[$inputname] ["name"]) die ("Do not upload picture information, please confirm"); $name = Explode (".", $_files[$inputname] ["name"]);//will be uploaded before the file with "." Get file types separately $imgcount = count ($name);//number of intercepts obtained $imgtype = $name [$imgcount -1];//gets the type of file if (Strpos ($this->upfiletype, $imgtype) = = False) die (Error ("Upload file type support only". $this->upfiletype. "Unsupported". $imgtype)); $photo = $imagename. ". $imgtype//file name written to the database tutorial $uploadfile = $this->annexfolder. " /". $photo;//file name after upload $upfileok = Move_uploaded_file ($_files[$inputname] ["Tmp_name"], $uploadfile); if ($upfileok) { $imgsize = $_files[$inputname] ["size"]; $ksize = Round ($imgsize/1024); if ($ksize > ($this->upfilemax*1024)) { @unlink ($uploadfile); Die Error ("Upload file over". $this->upfilemax. " KB ")); } } else { Die ("Upload image failed, please make sure your upload file does not exceed $upfilemax KB or upload time timeout")); } return $photo; } function GetInfo ($photo) { $photo = $this->annexfolder. " /". $photo; $imageinfo = getimagesize ($photo); $imginfo ["width"] = $imageinfo [0]; $imginfo ["height"] = $imageinfo [1]; $imginfo ["type"] = $imageinfo [2]; $imginfo ["name"] = basename ($photo); return $imginfo; } function smallimg ($photo, $width =128, $height =128) { $imginfo = $this->getinfo ($photo); $photo = $this->annexfolder. " /". $photo;//Get Picture source $newname = substr ($imginfo ["Name"],0,strrpos ($imginfo ["name"], "."). " _thumb.jpg ";//New picture name if ($imginfo ["type"] = = 1) { $img = Imagecreatefromgif ($photo); } elseif ($imginfo [' type] = = 2) { $img = Imagecreatefromjpeg ($photo); } elseif ($imginfo [' type] = = 3) { $img = Imagecreatefrompng ($photo); } else { $img = ""; } if (empty ($img)) return false; $width = ($width > $imginfo ["width"])? $imginfo ["width"]: $width; $height = ($height > $imginfo ["height"])? $imginfo ["Height"]: $height; $SRCW = $imginfo ["width"]; $srch = $imginfo ["Height"]; if ($SRCW * $width > $srch * $height) { $height = Round ($srch * $width/$SRCW); } else { $width = Round ($SRCW * $height/$srch); } if (function_exists ("Imagecreatetruecolor")) { $newimg = Imagecreatetruecolor ($width, $height); Imagecopyresampled ($newimg, $img, 0, 0, 0, 0, $width, $height, $imginfo ["width"], $imginfo ["height"]); } else { $newimg = Imagecreate ($width, $height); Imagecopyresized ($newimg, $img, 0, 0, 0, 0, $width, $height, $imginfo ["width"], $imginfo ["height"]); } if ($this->tofile) { if (file_exists ($this->annexfolder.) /". $this->smallfolder." /". $newname)) @unlink ($this->annexfolder.) /". $this->smallfolder." /". $newname); Imagejpeg ($newimg, $this->annexfolder. " /". $this->smallfolder." /". $newname); return $this->annexfolder. " /". $this->smallfolder." /". $newname; } else { Imagejpeg ($NEWIMG); } Imagedestroy ($NEWIMG); Imagedestroy ($IMG); return $newname; } function watermark ($photo, $text) { $imginfo = $this->getinfo ($photo); $photo = $this->annexfolder. " /". $photo; $newname = substr ($imginfo ["name"], 0, Strrpos ($imginfo ["name"], "."). "_mark.jpg"; Switch ($imginfo [' type]]) { Case 1: $img = Imagecreatefromgif ($photo); Break Case 2: $img = Imagecreatefromjpeg ($photo); Break Case 3: $img = Imagecreatefrompng ($photo); Break Default return false; } if (empty ($img)) return false; $width = ($this->maxwidth > $imginfo ["width"])? $imginfo ["width"]: $this->maxwidth; $height = ($this->maxheight > $imginfo ["height"])? $imginfo ["Height"]: $this->maxheight; $SRCW = $imginfo ["width"]; $srch = $imginfo ["Height"]; if ($SRCW * $width > $srch * $height) { $height = Round ($srch * $width/$SRCW); } else { $width = Round ($SRCW * $height/$srch); } if (function_exists ("Imagecreatetruecolor")) { $newimg = Imagecreatetruecolor ($width, $height); Imagecopyresampled ($newimg, $img, 0, 0, 0, 0, $width, $height, $imginfo ["width"], $imginfo ["height"]); } else { $newimg = Imagecreate ($width, $height); Imagecopyresized ($newimg, $img, 0, 0, 0, 0, $width, $height, $imginfo ["width"], $imginfo ["height"]); } $white = Imagecolorallocate ($newimg, 255, 255, 255); $black = imagecolorallocate ($newimg, 0, 0, 0); $alpha = Imagecolorallocatealpha ($newimg, 230, 230, 230, 40); Imagefilledrectangle ($newimg, 0, $height -26, $width, $height, $alpha); Imagefilledrectangle ($newimg, $height -20, $height-7, $black); Imagettftext ($newimg, 4.9, 0, $height -14, $black, $this->fonttype, $text [0]); Imagettftext ($newimg, 4.9, 0, $height-6, $black, $this->fonttype, $text [1]); if ($this->tofile) { if (file_exists ($this->annexfolder.) /". $this->markfolder." /". $newname)) @unlink ($this->annexfolder.) /". $this->markfolder." /". $newname); Imagejpeg ($newimg, $this->annexfolder. " /". $this->markfolder." /". $newname); return $this->annexfolder. " /". $this->markfolder." /". $newname; } else { Imagejpeg ($NEWIMG); } Imagedestroy ($NEWIMG); Imagedestroy ($IMG); return $newname; } }