[Plugin: Password Content ShortCode] Add a shortcode within your php?

Hello, I’m trying to add a simple contact form shortcode within your php in order to include the form with the password submit field/button… This would then hide the contact form once the password is submitted… And show the protected content. I would like the contact form shortcode to appear above the password submit button.

I’m pretty sure that

echo do_shortcode('[contact form shortcode]');

would go somewhere in here:

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Do you have any suggestions? Thanks much!

http://wordpress.org/extend/plugins/password-content-shortcode/