What are some best practices for handling large file uploads in PHP?

Handling large file uploads in PHP can be challenging due to limitations in server configurations and PHP settings. To handle large file uploads effectively, it is important to adjust the PHP settings to allow for larger file sizes, use proper error handling to manage potential issues during the upload process, and consider implementing chunked file uploads to break down large files into smaller parts for easier processing. 

<?php
// Increase PHP settings for file uploads
ini_set('upload_max_filesize', '20M');
ini_set('post_max_size', '20M');

// Handle file upload
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
    $file = $_FILES['file'];
    
    if ($file['error'] === UPLOAD_ERR_OK) {
        // Process the uploaded file
    } else {
        // Handle upload error
        echo 'Error uploading file.';
    }
}
?>

Keywords

file uploads PHP large files memory management chunking

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