Common Useful functions for php

common_functions.php

/**
 * Function to generate File Name
 * 
 * @param string $extension
 * @param string $prefix
 * @return string
 */
function generateRandomName($extension = '', $prefix = '') {
    $bytes = random_bytes(16);
    $name = bin2hex($bytes);
    if (! empty($prefix)) {
        $name = $prefix . '-' . $name;
    }
    if (! empty($extension)) {
        $name .= '.' . $extension;
    }

    return $name;
}