Validate phone number ios

Question

I need to validate an international phone number.

I know its difficult to validate an international phone number, so I\'m going to keep it simple:

+

Answer 1

-(int)findLength:(NSString*)phoneNumber
{
    phoneNumber = [phoneNumber stringByReplacingOccurrencesOfString:@"(" withString:@""];
    phoneNumber = [phoneNumber stringByReplacingOccurrencesOfString:@")" withString:@""];
    phoneNumber = [phoneNumber stringByReplacingOccurrencesOfString:@" " withString:@""];
    phoneNumber = [phoneNumber stringByReplacingOccurrencesOfString:@"-" withString:@""];
    phoneNumber = [phoneNumber stringByReplacingOccurrencesOfString:@"+" withString:@""];

int length = [phoneNumber length];

return length;

}