type=\"file\"<\/code> attribute.<\/li>\n<\/ul>\n<form<\/span> action<\/span>=\"upload.php\"<\/span> method<\/span>=\"post\"<\/span> enctype<\/span>=\"multipart\/form-data\"<\/span>><\/span>\r\n Select Image File to Upload:\r\n <input<\/span> type<\/span>=\"file\"<\/span> name<\/span>=\"file\"<\/span>><\/span>\r\n <input<\/span> type<\/span>=\"submit\"<\/span> name<\/span>=\"submit\"<\/span> value<\/span>=\"Upload\"<\/span>><\/span>\r\n<\/form<\/span>><\/span><\/pre>\nAfter the form submission, the file data is posted to the upload.php<\/code> file to upload and add watermark to image using PHP.<\/p>\nUpload Image and Add Watermark with PHP (upload.php)<\/h2>\n
The upload.php<\/code> file handles the image upload and watermark adding functionality.<\/p>\n\n- Use PHP pathinfo()<\/b> function to get the file extension and check whether the selected file type is within the allowed file format.<\/li>\n
- Upload file to server using move_uploaded_file()<\/b> function in PHP.<\/li>\n
- Load and create a new stamp from the watermark image using imagecreatefrompng()<\/b> function.<\/li>\n
- Load and create a new image from the uploaded image based on the file type.<\/li>\n
- Set the right and bottom margin for the watermark image.<\/li>\n
- Get the height and width of the watermark image.<\/li>\n
- Copy the watermark image onto the uploaded photo using imagecopy()<\/b> function.<\/li>\n
- Use margin offsets and image width to calculate the positioning of the watermark.<\/li>\n
- Save image with watermark using imagepng()<\/b> function.<\/li>\n
- Free memory associated with image resource using imagedestroy()<\/b> function.<\/li>\n
- Display the watermarked image upload status.<\/li>\n<\/ul>\n
<?php
<\/span>\/\/ Path configuration
<\/span>$targetDir <\/span>= <\/span>\"uploads\/\"<\/span>;
<\/span>$watermarkImagePath <\/span>= <\/span>'codexworld-logo.png'<\/span>;
<\/span>$statusMsg <\/span>= <\/span>''<\/span>;
if(isset(<\/span>$_POST<\/span>[<\/span>\"submit\"<\/span>])){
if(!empty(<\/span>$_FILES<\/span>[<\/span>\"file\"<\/span>][<\/span>\"name\"<\/span>])){
<\/span>\/\/ File upload path
<\/span>$fileName <\/span>= <\/span>basename<\/span>(<\/span>$_FILES<\/span>[<\/span>\"file\"<\/span>][<\/span>\"name\"<\/span>]);
<\/span>$targetFilePath <\/span>= <\/span>$targetDir <\/span>. <\/span>$fileName<\/span>;
<\/span>$fileType <\/span>= <\/span>pathinfo<\/span>(<\/span>$targetFilePath<\/span>,<\/span>PATHINFO_EXTENSION<\/span>);
<\/span>\/\/ Allow certain file formats
<\/span>$allowTypes <\/span>= array(<\/span>'jpg'<\/span>,<\/span>'png'<\/span>,<\/span>'jpeg'<\/span>);
if(<\/span>in_array<\/span>(<\/span>$fileType<\/span>, <\/span>$allowTypes<\/span>)){
<\/span>\/\/ Upload file to the server
<\/span>if(<\/span>move_uploaded_file<\/span>(<\/span>$_FILES<\/span>[<\/span>\"file\"<\/span>][<\/span>\"tmp_name\"<\/span>], <\/span>$targetFilePath<\/span>)){
<\/span>\/\/ Load the stamp and the photo to apply the watermark to
<\/span>$watermarkImg <\/span>= <\/span>imagecreatefrompng<\/span>(<\/span>$watermarkImagePath<\/span>);
switch(<\/span>$fileType<\/span>){
case <\/span>'jpg'<\/span>:
<\/span>$im <\/span>= <\/span>imagecreatefromjpeg<\/span>(<\/span>$targetFilePath<\/span>);
break;
case <\/span>'jpeg'<\/span>:
<\/span>$im <\/span>= <\/span>imagecreatefromjpeg<\/span>(<\/span>$targetFilePath<\/span>);
break;
case <\/span>'png'<\/span>:
<\/span>$im <\/span>= <\/span>imagecreatefrompng<\/span>(<\/span>$targetFilePath<\/span>);
break;
default:
<\/span>$im <\/span>= <\/span>imagecreatefromjpeg<\/span>(<\/span>$targetFilePath<\/span>);
}
<\/span>\/\/ Set the margins for the watermark
<\/span>$marge_right <\/span>= <\/span>10<\/span>;
<\/span>$marge_bottom <\/span>= <\/span>10<\/span>;
<\/span>\/\/ Get the height\/width of the watermark image
<\/span>$sx <\/span>= <\/span>imagesx<\/span>(<\/span>$watermarkImg<\/span>);
<\/span>$sy <\/span>= <\/span>imagesy<\/span>(<\/span>$watermarkImg<\/span>);
<\/span>\/\/ Copy the watermark image onto our photo using the margin offsets and
\/\/ the photo width to calculate the positioning of the watermark.
<\/span>imagecopy<\/span>(<\/span>$im<\/span>, <\/span>$watermarkImg<\/span>, <\/span>imagesx<\/span>(<\/span>$im<\/span>) - <\/span>$sx <\/span>- <\/span>$marge_right<\/span>, <\/span>imagesy<\/span>(<\/span>$im<\/span>) - <\/span>$sy <\/span>- <\/span>$marge_bottom<\/span>, <\/span>0<\/span>, <\/span>0<\/span>, <\/span>imagesx<\/span>(<\/span>$watermarkImg<\/span>), <\/span>imagesy<\/span>(<\/span>$watermarkImg<\/span>));
<\/span>\/\/ Save image and free memory
<\/span>imagepng<\/span>(<\/span>$im<\/span>, <\/span>$targetFilePath<\/span>);
<\/span>imagedestroy<\/span>(<\/span>$im<\/span>);
if(<\/span>file_exists<\/span>(<\/span>$targetFilePath<\/span>)){
<\/span>$statusMsg <\/span>= <\/span>\"The image with watermark has been uploaded successfully.\"<\/span>;
}else{
<\/span>$statusMsg <\/span>= <\/span>\"Image upload failed, please try again.\"<\/span>;
}
}else{
<\/span>$statusMsg <\/span>= <\/span>\"Sorry, there was an error uploading your file.\"<\/span>;