How to find out if a particular plugin is enabled in a sub-blog in a multisite blog?
Answers:
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Method 1
Hm, I am not entirely sure about mechanics here. Usual is_plugin_active() checks if plugin is in active_plugins option.
By this logic you could probably retrieve active_plugins of specific blog with get_blog_option() and check it for plugin.
Method 2
Ya what Rarst said, for his example you can do something like the following but it returns an array with active plugin name/plugin_filename.php
get_option(‘active_plugins’);
You can try using use the global $plugin to get a lot more data.
global $plugins;
$plugins = array(
'all' => apply_filters( 'all_plugins', get_plugins() ),
'search' => array(),
'active' => array(),
'inactive' => array(),
'recently_activated' => array(),
'upgrade' => array(),
'mustuse' => array(),
'dropins' => array()
);
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