How can PHP developers improve code organization and readability when working with image uploads?

When working with image uploads in PHP, developers can improve code organization and readability by creating separate functions for handling different aspects of the image upload process, such as validation, resizing, and saving the image to the server. By breaking down the code into smaller, reusable functions, it becomes easier to understand and maintain. Additionally, using meaningful variable names and comments can further enhance readability.

// Function to validate the uploaded image
function validateImage($image) {
    // Add validation logic here
}

// Function to resize the uploaded image
function resizeImage($image) {
    // Add resizing logic here
}

// Function to save the uploaded image to the server
function saveImage($image) {
    // Add saving logic here
}

// Main code for handling image upload
if(isset($_FILES['image'])) {
    $uploadedImage = $_FILES['image'];
    
    if(validateImage($uploadedImage)) {
        resizeImage($uploadedImage);
        saveImage($uploadedImage);
        echo "Image uploaded successfully!";
    } else {
        echo "Invalid image file!";
    }
}