validating phone numbers with php
3 Jan
When relying on your end-user to supply information in the proper format, you’re S.O.L. when it comes to doing anything with that data. It’s best to use some proper PHP tools to validate your data and make sure it’s in a format your application can read before passing it along to other places. Follow me as I take a look at validating user-entered data in this first installment of what I hope to be a continuing series.
Most of the applications I work with have a Web-based front-end where users submit data. Other applications, also Web-based, involve data that has been imported from some other source, such as a text file. In both situations, the data that the application gathers is unreliable at best. I simply cannot trust a person or a text file (of data that was entered by a person) to enter data in the correct format that I require. In fact, since I’ve worked with text files that have been compiled from data entered by customer service reps, I’ve come to find that no two customer service reps enter data in the same way. In fact, most don’t enter data the same way twice!
Ben Ramsey » Blog Archive » Making It Valid: Telephone Numbers
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