cs1520: lab 6
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1. php form validation
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create a web page that has a form containing 2 inputs.
The first input is optional (can be blank) but should only accept integers.
The second input is mandatory and should only accept emails.
When the form is submitted, display a message if the input values are valid.

You can use template.php to get started.

The following example may also be helpful:
http://db.cs.pitt.edu/courses/cs1520/spring2012/examples/php/2/power3.phps