export const checkPhoneNumberInput = (num) => {
    const numbReg = /^[0-9]+$/;
    const newValue = num.replace("+63", "");

    //Check if value is not number.
    if(newValue.length > 0 && !numbReg.test(newValue)) return false;
    
    //Check if valus starts with number 9.
    //0 is allowed to be the first number for demo porposes.
    if(newValue.length > 0 && !newValue.startsWith("9")) return false;
    
    return true;
}