What are the best practices for implementing a file upload feature in PHP applications to accommodate larger file sizes?

When implementing a file upload feature in PHP applications to accommodate larger file sizes, it is important to adjust the PHP configuration settings to allow for larger file uploads. This can be done by changing the values of `upload_max_filesize`, `post_max_size`, and `max_execution_time` in the php.ini file. Additionally, handling file uploads in chunks and utilizing server-side validation can help improve the overall performance and security of the file upload feature. 

// Adjust PHP configuration settings to allow larger file uploads
ini_set('upload_max_filesize', '20M');
ini_set('post_max_size', '25M');
ini_set('max_execution_time', 300);

// Handle file upload
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
    $file = $_FILES['file'];
    
    // Perform server-side validation
    if ($file['error'] === UPLOAD_ERR_OK) {
        // Process the uploaded file
        move_uploaded_file($file['tmp_name'], 'uploads/' . $file['name']);
        echo 'File uploaded successfully!';
    } else {
        echo 'Error uploading file.';
    }
}

Keywords

file upload PHP applications larger file sizes implementation best practices

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