1. You have to allow for a space in your pattern - you can do so by hitting the space
bar or using \s. Here are some options
$pattern="/^[a-zA-Z ]+$/";
if(preg_match($pattern,$_POST['name']))
{
$pattern="/^[a-zA-Z\s]+$/";
if(preg_match($pattern,$_POST['name']))
{
$pattern="/^[a-zA-Z]+[\s]?[a-zA-Z]*$/";
if(preg_match($pattern,$_POST['name']))
{
2. Do you want other characters besides numbers in the phone, such as 333-333-3333?
Otherwise, this should do it:
$pattern="/^[\d]{10}$/";
if(preg_match($pattern,$_POST['phone']))
{
