Is it recommended to have a santizing function that combines two or more built in sanitizing functions in php?

Question

Is it okay to employ a function that sanitizes the incoming inputs due to a form submission or any other request. It is time saving but the question of effectivenss and efficien

Answer 1

Yes, you can create a simple function to sanitize a value before use it. I use a function like that:

function sanitize($value)
{
    return htmlentities(addslashes($value));
}

Which escape ' and " and convert all applicable character in html entities. Mine is more complicated with other option, but you can begin from it.