WordPress.org

Description

Checks if a plugin is not activated.

This function is the logical negation of is_plugin_active(). Used as a callback.

Usage

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

Parameters

$plugin

(string) (required) The name of the plugin sub-directory/file.

Default: None

Return Values

True

if plugin is not activated, else false.

Examples

<?php
// Makes sure the plugin is defined before trying to use it
if ( ! function_exists('is_plugin_inactive')) {
    require_once( ABSPATH . '/wp-admin/includes/plugin.php' );
}

if (is_plugin_inactive('plugin-directory/plugin-file.php')) {
    //plugin is not activated
}
?>

Notes

The file that defines this function (wp-admin/includes/plugin.php) is only loaded in the admin sections. In order to use is_plugin_active outside the admin pages, it's necessary to include or require plugin.php before trying to use it (as shown in the example).

Change Log

Since Version 3.1

Source File

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

Related

• Article: Introduction to WordPress conditional functions
• Function: comments_open()
• Function: is_404()
• Function: is_admin()
• Function: is_admin_bar_showing()
• Function: is_archive()
• Function: is_attachment()
• Function: is_author()
• Function: is_category()
• Function: is_comments_popup()
• Function: is_date()
• Function: is_day()
• Function: is_feed()
• Function: is_front_page()
• Function: is_home()
• Function: is_local_attachment()
• Function: is_main_query
• Function: is_multi_author
• Function: is_month()
• Function: is_new_day()
• Function: is_page()
• Function: is_page_template()
• Function: is_paged()
• Function: is_plugin_active()
• Function: is_plugin_active_for_network()
• Function: is_plugin_inactive()
• Function: is_plugin_page()
• Function: is_post_type_archive()
• Function: is_preview()
• Function: is_search()
• Function: is_single()
• Function: is_singular()
• Function: is_sticky()
• Function: is_tag()
• Function: is_tax()
• Function: is_taxonomy_hierarchical()
• Function: is_time()
• Function: is_trackback()
• Function: is_year()
• Function: in_category()
• Function: in_the_loop()
• Function: is_active_sidebar()
• Function: is_active_widget()
• Function: is_blog_installed()
• Function: is_rtl()
• Function: is_dynamic_sidebar()
• Function: is_user_logged_in()
• Function: has_excerpt()
• Function: has_post_thumbnail()
• Function: has_tag()
• Function: pings_open()
• Function: email_exists()
• Function: post_type_exists()
• Function: taxonomy_exists()
• Function: term_exists()
• Function: username_exists()
• Function: wp_attachment_is_image()
• Function: wp_script_is()