php form validation: validate name, email, phone number in the format 555-555-5555?

Tommy

New member
their seems to be lots of ways to to this but I was unable to make it work on my page, so
validate name, email, phone number in the format 555-555-5555

then after that, submit the form to a someFile.txt then show a confirmation message

thank you
please give a good code. Assignment is due soon
 
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