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Function Reference/is plugin active

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Description

Checks if a plugin is activated.

NOTE: defined in wp-admin/includes/plugin.php, so this is only available from within the admin pages. If you want to use this function from within a template, you will need to manually require plugin.php, an example is below.

Usage

In the Admin Area: <?php is_plugin_active($plugin) ?> In the front end, in a theme, etc... <?php include_once( ABSPATH . 'wp-admin/includes/plugin.php' ); ?>
<?php is_plugin_active($plugin) ?>

Parameters

$plugin
(string) (required) The name of the plugin sub-directory/file.
Default: None

Return Values

True
if plugin is activated, else false.

Examples

<?php
   If (is_plugin_active('plugin-directory/plugin-file.php')) {
      //plugin is activated
   }
?>

Change Log

Since Version 2.5

Source File

is_plugin_active() is defined in wp-admin/includes/plugin.php.

Related

Conditional Tags: comments_open(), is_404(), is_admin(), is_admin_bar_showing(), is_archive(), is_attachment(), is_author(), is_category(), is_comments_popup(), is_date(), is_day(), is_feed(), is_front_page(), is_home(), is_local_attachment(), is_multi_author, is_month(), is_new_day(), is_page(), is_page_template(), is_paged(), is_plugin_active(), is_plugin_active_for_network(), is_plugin_inactive(), is_plugin_page(), is_post_type_archive(), is_preview(), is_search(), is_single(), is_singular(), is_sticky(), is_tag(), is_tax(), is_taxonomy_hierarchical(), is_time(), is_trackback(), is_year(), in_category(), in_the_loop(), is_active_sidebar(), is_active_widget(), is_blog_installed(), is_rtl(), is_dynamic_sidebar(), is_user_logged_in(), has_excerpt(), has_post_thumbnail(), has_tag(), pings_open(), email exists(), post_type_exists(), taxonomy_exists(), term_exists(), username exists(), wp_attachment_is_image(), wp_script_is()

See also index of Function Reference and index of Template Tags.
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