Insert "Last Updated" Code in Footer?

I want to insert a "last updated" snippet in my footer, to change upon any update or addition to content.

What's the easiest approach?

Example:    Last updated:  June 6, 2013
sandshakimiAsked:
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Aaron FeledyConnect With a Mentor Drupal Developer and ConsultantCommented:
I'm not sure there's a clean way to do this in Drupal. You could use the views module to create a block. Your view would need to display only the date updated field of nodes sorted so that the most recent is displayed first. Then you could set your view to only display one result. That would leave you with a block that will only display the date of the most recently updated content.
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Guru JiCommented:
You can just use getlastmod method in php to accomplish this.

int getlastmod ( void )
Gets the time of the last modification of the current page.

Example

<?php
// outputs e.g. 'Last modified: May 04 2013 20:43:59.'
echo "Last modified: " . date ("F d Y H:i:s.", getlastmod());
?>
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stephencolsonCommented:
As you posted this in the Drupal area, I will assume you want the last modified date of a page in Drupal, not of a basic html (or simple php) file. getlastmod() only works for the file it is called from and doesn't have anything to do with Drupal's content updates.

For some clarification, are you looking for the last date for the site as a whole, or the last update for that specific page?
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stephencolsonConnect With a Mentor Commented:
To expand on Arrow's comment a bit, that method would show the most recent content update as far as the entire site is concerned, not necessarily for the page you are on.

If you wanted to restrict the block to showing only for the content page you are on, then you can take the same approach, but add a contextual filter for the node id. In the contextual filter, you can tell it the default behavior should be to hide the block if no node id was found, and then it will not show on your homepage or other dynamic listing pages, but will show on individual content pages.
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sandshakimiAuthor Commented:
One code for the whole site, not individual pages.

The update could be anywhere, but is reflected in one date. So perhaps Arrow's approach is sufficient.
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stephencolsonCommented:
Correct, Arrow's approach with a block view should suffice.
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