PHP File without PHP Code

I help maintain a website that uses Wordpress as the content management system in addition to using PHP templates. What I find puzzling is that when I looked into some of the files' contents, I could not find any PHP code. Instead the files only had HTML and JavaScript or JQuery. Can a file have a .php extension yet not have any PHP code in it?
geeta_m9Asked:
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GaryCommented:
Yep, still be processed as a php page but if there is no php code then it doesn't matter
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Dave BaldwinFixer of ProblemsCommented:
Definitely Yes.
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GaryCommented:
When you use php you tend to name all your pages .php even if there is no php code (at least I do)
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Ray PaseurCommented:
Sure.  PHP and HTML coexist nicely.  The PHP parse engine simply ignores anything that is not wrapped in <?php ... ?> tags.  So the HTML just flows through.
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geeta_m9Author Commented:
So, can I put any web scripting code into a PHP file or is it just limited to HTML and JavaScript or JQuery?
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GaryCommented:
web scripting code
Yes, a php page is parsed at the server where the php is interpreted (only php).  Any client side scripting is ignored as that is for the browser to parse.
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geeta_m9Author Commented:
Ok. Thanks.
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