Check to see if a string is serialized?

Question

What\'s the best way to determine whether or not a string is the result of the serialize() function?

https://www.php.net/manual/en/function.serialize

Answer 1

If the $string is a serialized false value, ie $string = 'b:0;' SoN9ne's function returns false, it's wrong

so the function would be

/**
 * Check if a string is serialized
 *
 * @param string $string
 *
 * @return bool
 */
function is_serialized_string($string)
{
    return ($string == 'b:0;' || @unserialize($string) !== false);
}