PHP adds watermark & amp; proportional thumbnails & amp; fixed height & amp; fixed width class.

PHP adds watermark & amp; proportional thumbnail & amp; fixed height & amp; fixed width class.

// Add watermark & proportional thumbnail & fixed height & fixed width in PHP. Class Image_process { Public $ source; // source image Public $ source_width; // source image width Public $ source_height; // source image height Public $ source_type_id; Public $ orign_name; Public $ orign_dirname; // Input the source image path Public function _ construct ($ source ){ $ This-> typeList = array (1 => 'GIF', 2 => 'jpg ', 3 => 'PNG '); $ Ginfo = getimagesize ($ source ); $ This-> source_width = $ ginfo [0]; $ This-> source_height = $ ginfo [1]; $ This-> source_type_id = $ ginfo [2]; $ This-> orign_url = $ source; $ This-> orign_name = basename ($ source ); $ This-> orign_dirname = dirname ($ source ); } // Determine the format of the image file and return the PHP identifiable code Public function judgeType ($ type, $ source ){ If ($ type = 1 ){ Return imagecreatefromgif ($ source); // gif } Else if ($ type = 2 ){ Return imagecreatefromjpeg ($ source); // jpg } Else if ($ type = 3 ){ Return imagecreatefrompng ($ source); // png } Else { Return false; } } // Generate a watermark image Public function waterMakeImage ($ logo ){ $ Linfo = getimagesize ($ logo ); $ Logo_width = $ linfo [0]; $ Logo_height = $ linfo [1]; $ Logo_type_id = $ linfo [2]; $ SourceHandle = $ this-> judgeType ($ this-> source_type_id, $ this-> orign_url ); $ LogoHandle = $ this-> judgeType ($ logo_type_id, $ logo ); If (! $ SourceHandle |! $ LogoHandle ){ Return false; } $ X = ($ this-> source_width-$ logo_width)/2; $ Y = ($ this-> source_height-$ logo_height)/2; Imagecopy ($ sourceHandle, $ logoHandle, $ x, $ y, 0, $ logo_width, $ logo_height ); $ NewPic = $ this-> orign_dirname. '\ water _'. time (). '.'. $ this-> typeList [$ this-> source_type_id]; If ($ this-> saveImage ($ sourceHandle, $ newPic )){ Imagedestroy ($ sourceHandle ); Imagedestroy ($ logoHandle ); } } // Fixed height and width Public function fixSizeImage ($ width, $ height ){ If ($ width> $ this-> source_width) $ this-> source_width; If ($ height> $ this-> source_height) $ this-> source_height; If ($ width = false ){ $ Width = floor ($ this-> source_width/($ this-> source_height/$ height )); } If ($ height = false ){ $ Height = floor ($ this-> source_height/($ this-> source_width/$ width )); } $ This-> tinyImage ($ width, $ height ); } // Proportional scaling Public function scaleImage ($ scale ){ $ Width = floor ($ this-> source_width * $ scale ); $ Height = floor ($ this-> source_height * $ scale ); $ This-> tinyImage ($ width, $ height ); } // Create a thumbnail Public function tinyImage ($ width, $ height ){ $ TinyImage = imagecreatetruecolor ($ width, $ height ); $ Handle = $ this-> judgeType ($ this-> source_type_id, $ this-> orign_url ); If (function_exists ('imagecopyresampled ')){ Imagecopyresampled ($ tinyImage, $ handle, 0, 0, 0, $ width, $ height, $ this-> source_width, $ this-> source_height ); } Else { Imagecopyresized ($ tinyImage, $ handle, 0, 0, 0, 0, $ width, $ height, $ this-> source_width, $ this-> source_height ); } $ NewPic = $ this-> orign_dirname. '\ thumb _'. time (). '_'. $ width. "_". $ height. ". ". $ this-> typeList [$ this-> source_type_id]; If ($ this-> saveImage ($ tinyImage, $ newPic )){ Imagedestroy ($ tinyImage ); Imagedestroy ($ handle ); } } // Save the image Private function saveImage ($ image, $ url ){ If (imagejpeg ($ image, $ url )){ Return true; } } } $ ImgHandle = new Image_process ('d: \ AppServ \ www \ test \ getimg \ 14063797445601.jpg '); // $ ImgHandle-> waterMakeImage ('d: \ AppServ \ www \ test \ getimg \ shougongke.png '); // Generate a watermark image // $ ImgHandle-> fixSizeImage (200,150); // fixed-length image $ ImgHandle-> scaleImage (0.2); // proportional scaling ?>

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