PHP image watermark code, PHP upload image watermark example code-PHP Tutorial-php.cn

//Upload file type list $uptypes=array( 'image/jpg', 'image/jpeg', 'image/png', 'image/pjpeg', 'image/gif', 'image/bmp', 'image/x-png' ); $max_file_size=2000000; //Upload file size limit, unit BYTE $destination_folder="uploadimg/"; / /Upload file path $watermark=1; //Whether to attach a watermark (1 means adding watermark, others means not adding watermark); $watertype=1; //Watermark type (1 means text, 2 means picture) $waterposition =1; //Watermark position (1 is the lower left corner, 2 is the lower right corner, 3 is the upper left corner, 4 is the upper right corner, 5 is in the center); $waterstring="http://bbs.it-home.org /"; //Watermark string $waterimg="xplore.gif"; //Watermark image $imgpreview=1; //Whether to generate a preview image (1 means generated, others do not generate); $imgpreviewsize=1 /2; //Thumbnail ratio ?> ZwelL Image Uploader body { font-size: 9pt; } input { background-color: #66CCFF; border: 1px inset #CCCCCC; } --> method="post" name="upform"> Upload file: The file types allowed to be uploaded are: if ($_SERVER['REQUEST_METHOD'] == 'POST') { if (!is_uploaded_file($_FILES["upfile"] [tmp_name])) //Whether the file exists { echo "The picture does not exist!"; exit; } $file = $_FILES["upfile"]; if($max_file_size //Check file size { echo "File too big!"; exit; } if(!in_array($file["type"], $uptypes)) //Check file type { echo " File type does not match!".$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) && $overwrite != true) { echo "The file with the same name already exists"; exit; } if(!move_uploaded_file ($filename, $destination)) { echo "Error moving file"; exit; } $pinfo=pathinfo($destination); $fname=$pinfo[basename]; echo " Successfully uploaded File name: ".$destination_folder. $fname." "; echo " Width: ".$image_size[0]; echo " Length: ".$image_size[1]; echo " Size: ".$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("Unsupported file type"); 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: //Add watermark string imagestring($nimage,2,3,$image_size[1]-15, $waterstring,$black); break; case 2: //Add watermark image $simage1 =imagecreatefromgif("xplore.gif"); imagecopy($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, $destination); break; } //Overwrite the original uploaded file imagedestroy($nimage); imagedestroy($simage); } if($imgpreview==1) { echo " Image preview: "; echo " ($image_size[0]*$imgpreviewsize)." height=".($image_size[1]*$imgpreviewsize);" echo " alt=" Image preview:rFile name:". $destination."rUpload time:" />"; } } ?> Copy code