PHP image upload class can generate thumbnails and add watermarks at the same time_PHP tutorial

PHP image upload class can generate thumbnails and add watermarks at the same time This image upload code can add watermarks to uploaded images, generate small images, and also generate text watermarks.

PHP tutorial image upload class can generate thumbnails and add watermarks at the same time
This image upload code can add watermarks to uploaded images, generate small images, and also generate text watermarks.

class upimages {
        var $annexfolder = "upload";//Attachment storage point, the default is: annex
        var $smallfolder = "small";//Thumbnail storage path, note: it must be a subdirectory under $annexfolder, the default is: smallimg
        var $markfolder = "mark";//Watermark image storage location
            var $upfiletype = "jpg gif png";//Upload type, the default is: jpg gif png rar zip
        var $upfilemax = 1024; //Upload size limit, unit is "kb", default is: 1024kb
        var $fonttype;//Font
        var $maxwidth = 500; //Maximum width of image
        var $maxheight = 600; //Maximum height of the picture
Function upimages($annexfolder,$smallfolder,$includefolder) {
$this->annexfolder = $annexfolder;
$this->smallfolder = $smallfolder;
$this->fonttype = $includefolder."/04b_08__.ttf";
}
         function upload($inputname) {
                            $imagename = time();//Set the current time as the image name
If(@empty($_files[$inputname]["name"])) die("No image information has been uploaded, please confirm");
                 $name = explode(".",$_files[$inputname]["name"]);//Separate the files before uploading with "." to obtain the file type
                     $imgcount = count($name);//Get the number of interceptions
                    $imgtype = $name[$imgcount-1];//Get the type of file
if(strpos($this->upfiletype,$imgtype) === false) die(error("The upload file type only supports ".$this->upfiletype." does not support ".$imgtype));
                     $photo = $imagename.".".$imgtype;//File name for writing database tutorial
                   $uploadfile = $this->annexfolder."/".$photo;//Uploaded file name
                   $upfileok = move_uploaded_file($_files[$inputname]["tmp_name"],$uploadfile);
If($upfileok) {
                             $imgsize = $_files[$inputname]["size"];
                                $ksize = round($imgsize/1024);
If($ksize > ($this->upfilemax*1024)) {
                                                                                                                                                    die(error("The uploaded file exceeds ".$this->upfilemax."kb"));
                                                                                                          }                      } else {
                                                                                                                                  die(error("Failed to upload image, please confirm that your uploaded file does not exceed $upfilemax kb or upload time times out"));
                }
                      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 the 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, 13, $height-20, 15, $height-7, $black);
                imagettftext($newimg, 4.9, 0, 20, $height-14, $black, $this->fonttype, $text[0]);
                imagettftext($newimg, 4.9, 0, 20, $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;
        }
}

http://www.bkjia.com/PHPjc/633040.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/633040.htmlTechArticlephp图片上传类同时可生成缩略图与加水印这款图片上传代码可以把上传的图片增加水印，生成小图片，同时还可以生成文字水印。 php教程图...