How can JavaScript and PHP work together seamlessly to allow users to interactively crop and resize images before uploading them to a server?

To allow users to interactively crop and resize images before uploading them to a server, JavaScript can be used to handle the client-side image manipulation, while PHP can handle the server-side processing and storage of the cropped and resized images. 

<?php
// PHP code to handle the uploaded image
if(isset($_FILES['image'])){
    $file_name = $_FILES['image']['name'];
    $file_tmp = $_FILES['image']['tmp_name'];
    
    // Move the uploaded file to a designated folder
    move_uploaded_file($file_tmp, "uploads/" . $file_name);
    
    // Process the uploaded image further if needed
    // For example, resizing the image using PHP GD library
    $resized_image = imagecreatetruecolor(100, 100);
    $source = imagecreatefromjpeg("uploads/" . $file_name);
    imagecopyresampled($resized_image, $source, 0, 0, 0, 0, 100, 100, imagesx($source), imagesy($source));
    imagejpeg($resized_image, "uploads/resized_" . $file_name);
    
    // Output a success message
    echo "Image uploaded and resized successfully!";
}
?>

Keywords

JavaScript PHP image cropping image resizing file upload

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