How to detect padding on an integer and treat it as a string?

Answer 1

instead of is_numeric() use (int)$var == $var
I saw a beautiful use of the switch, should be something like this:

function sqlize($mInput)
{
    switch(TRUE)
    {
        default:
        case (!isset($mInput)): $mInput = "null"; break;
        case (strtolower($mInput) == "null"): break;
        case (is_numeric($mInput)): break;
        case (is_string($mInput)):
            $mInput = trim($mInput);
            $mInput = addslashes($mInput);
            $mInput = '"' . $mInput . '"';
            break;
    }
    return $mInput;
}