March 2011
Beginner to intermediate
300 pages
7h 23m
English
Content preview from WordPress 3 Plugin Development EssentialsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Testing WordPress installed plugins
A slightly more complicated test involves seeing whether or not another plugin is installed. This can be useful if you have one plugin that depends on another, or perhaps you just need to test whether or not a site has all of the plugins you expect it to. We took this a step further. The following function lets you specify the required plugins and the required versions of those plugins:
/** * This relies on the output of WP's get_plugins() and * get_option('active_plugins') functions. * * @param array $required_plugins An associative array with * the names of the plugins and the required versions, e.g. * array( 'My Great Plugin' => '0.9', 'Some Other Plugin' => '1.0.1' ) * @return none An error message is registered ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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