php圖片浮水印代碼，php上傳圖片加浮水印執行個體代碼

//上傳檔案類型列表 $uptypes=array( 'image/jpg', 'image/jpeg', 'image/png', 'image/pjpeg', 'image/gif', 'image/bmp', 'image/x-png' ); $max_file_size=2000000; //上傳檔案大小限制, 單位BYTE $destination_folder="uploadimg/"; //上傳檔案路徑 $watermark=1; //是否附加浮水印(1為加浮水印,其他為不加浮水印); $watertype=1; //浮水印類型(1為文字,2為圖片) $waterposition=1; //浮水印位置(1為左下角,2為右下角 ,3為左上方,4為右上方,5為置中); $waterstring="http://bbs.it-home.org/"; //浮水印字串 $waterimg="xplore.gif"; //浮水印圖片 $imgpreview=1; //是否產生預覽圖(1為產生,其他為不產生); $imgpreviewsize=1/2; //縮圖比例 ?> ZwelL圖片上傳程式 if ($_SERVER['REQUEST_METHOD'] == 'POST') { if (!is_uploaded_file($_FILES["upfile"] [tmp_name])) //是否存在檔案 { echo "圖片不存在!"; exit; } $file = $_FILES["upfile"]; if($max_file_size <$file["size"]) //檢查檔案大小 { echo "檔案太大!"; exit; } if(!in_array($file["type"], $uptypes)) //檢查檔案類型 { echo "檔案類型不符!".$file["type"]; exit; } if(!file_exists($destination_folder)) { mkdir($destination_folder); } $filename=$file["tmp_name"]; $image_size = getimagesize($filename); $pinfo=pathinfo($file["name"]); $ftype=$pinfo['extension']; $destination = $destination_folder. time().".".$ftype; if (file_exists($destination) && $overwrite != true) { echo "同名檔案已經存在了"; exit; } if(!move_uploaded_file ($filename, $destination)) { echo "移動檔案出錯"; exit; } $pinfo=pathinfo($destination); $fname=$pinfo[basename]; echo " 已經成功上傳 檔案名稱: ".$destination_folder. $fname." "; echo " 寬度:".$image_size[0]; echo " 長度:".$image_size[1]; echo " 大小:".$file["size"]." bytes"; if($watermark==1) { $iinfo=getimagesize($destination,$iinfo); $nimage=imagecreatetruecolor($image_size[0] ,$image_size[1]); $white=imagecolorallocate($nimage,255,255,255); $black=imagecolorallocate($nimage,0,0,0); $red=imagecolorallocate($nimage,255,0,0); imagefill($nimage,0,0,$white); switch ($iinfo[2]) { case 1: $simage =imagecreatefromgif($destination); break; case 2: $simage =imagecreatefromjpeg($destination); break; case 3: $simage =imagecreatefrompng($destination); break; case 6: $simage =imagecreatefromwbmp($destination); break; default: die("不支援的檔案類型"); exit; } imagecopy($nimage,$simage,0,0,0,0, $image_size[0],$image_size[1]); imagefilledrectangle($nimage,1, $image_size[1]-15,80,$image_size[1],$white); switch($watertype) { case 1: //加浮水印字串 imagestring($nimage,2,3,$image_size[1]-15, $waterstring,$black); break; case 2: //加浮水印圖片 $simage1 =imagecreatefromgif("xplore.gif"); imagecopy($nimage,$simage1,0,0,0,0,85,15); imagedestroy($simage1); break; } switch ($iinfo[2]) { case 1: //imagegif($nimage, $destination); imagejpeg($nimage, $destination); break; case 2: imagejpeg($nimage, $destination); break; case 3: imagepng($nimage, $destination); break; case 6: imagewbmp($nimage, $destination); //imagejpeg($nimage, $destination); break; } //覆蓋原上傳檔案 imagedestroy($nimage); imagedestroy($simage); } if($imgpreview==1) { echo " 圖片預覽: "; echo "height=".($image_size[1]*$imgpreviewsize);" echo " alt=\"圖片預覽:\r檔案名稱:". $destination."\r上傳時間:\" />"; } } ?> 複製代碼

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