php - headers sent??

I get this:

Warning: Cannot modify header information - headers already sent by (output started at /home/rkassoc/public_html/Houston/save_to_session.php:65) in /home/rkassoc/public_html/Houston/post_form.php on line 76

Attached is post_form.php & save_to_session.php

How does it think line 65 of save_to_session.php (the closing php tag) is sending a header?

How do I fix?

Thanks
post_form.php
save_to_session.php
Richard KortsBusiness Owner / Chief DeveloperAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Ray PaseurCommented:
This has been a common problem for many years, so much so, that we have articles here at E-E explaining it and showing how to get past the issues!
https://www.experts-exchange.com/articles/4423/Warning-Cannot-modify-header-information-headers-already-sent.html

Using the "close PHP"  tag is a well-known antipractice (see #14).  Don't do that any more!

TL;DR: Learn about ob_start().

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Richard KortsBusiness Owner / Chief DeveloperAuthor Commented:
Ray,

I actually thought about you and your comment (on some other question) about the closing php tag.

I'll try it tomorrow. I'm about 98% sure that will do it.

Richard
Dave BaldwinFixer of ProblemsCommented:
And turn on 'error_reporting' in 'post_form.php'.  Always.  And 'save_to_session.php' is saving a lot of &_POST data to $_SESSION variables without doing any checking.  If one of the indexes for the &_POST data is missing, it will cause an error by sending an error message to the browser before your 'header' statements at the end of 'post_form.php'.
Mukesh YadavFull Stack DeveloperCommented:
Try this ;)

Just remove closing PHP tags from save_to_session.php
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
PHP

From novice to tech pro — start learning today.