PHP Function to check whether the given number is decimal or not.

Below is a simple Function to check whether the given number is decimal or not.

function check_decimal($dec_val, $decimals = 2)

{

                        $pattern = "/^[-]*[0-9][0-9]*\.[0-9]{".$decimals."}$/";

                        if (preg_match($pattern,  $dec_val))

                                    return true;

                        else

                                    return false;

}