Are there any specific PHP functions or libraries that are recommended for handling file uploads in contact forms?

When handling file uploads in contact forms, it is recommended to use PHP's built-in functions like `move_uploaded_file()` to securely move the uploaded files to a designated directory on the server. Additionally, using libraries like `$_FILES` to access the uploaded file data and validate file types and sizes can help prevent potential security risks. 

// Example PHP code snippet for handling file uploads in a contact form

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $uploadDir = 'uploads/';
    $uploadFile = $uploadDir . basename($_FILES['file']['name']);

    // Validate file type and size
    if ($_FILES['file']['size'] > 500000) {
        echo 'File is too large.';
        return;
    }

    if (!move_uploaded_file($_FILES['file']['tmp_name'], $uploadFile)) {
        echo 'Failed to upload file.';
    } else {
        echo 'File uploaded successfully.';
    }
}

Keywords

PHP file uploads contact forms functions libraries

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