The IsPhoneNumber function returns a value of true or false. This uses the same phone number validation as MobileConnect but note that it does not use the E.164 number format with the plus (+) symbol.
Example:
A good use case might be to check the phone number a user enters into a CloudPage form.
%%[
set @phone = ‘13105555555’
IF IsPhoneNumber(@phone) == ‘true’ THEN
set @msg = ‘Phone Number is Valid’
ELSE
set @msg = ‘Phone Number is Invalid’
ENDIF
]%%
%%=v(@msg)=%%
Output:
Phone Number is Valid
Explanation:
This works for US numbers with 10-digits including area code or 11-digits including the prefix of 1.
