WordPress Plugin Activation Dependency Check

Today, We want to share with you WordPress Plugin Activation Dependency Check.In this post we will show you Correctly perform a plugin dependency check, hear for Check for dependent plugin and if false dont activate plugin we will give you demo and example for implement.In this post, we will learn about Checking for a Plugin Dependency on Activation with an example.

WordPress Plugin Activation Dependency Check

There are the Following The simple About WordPress Plugin Activation Dependency Check Full Information With Example and source code.

As I will cover this Post with live Working example to develop wordpress theme plugin dependencies, so the wordpress plugin dependency on another plugin for this example is following below.

Check If Dependent Plugin Is Active

function my_custom_plugin_activate()
    add_option('Custom_Activated_Plugin', 'My-Custom-Plugin-Slug');

register_activation_hook(__FILE__, 'my_custom_plugin_activate');

function default_load_plugin()

    /* Check If Dependent Plugin Is Active */

    if (is_admin() && get_option('Custom_Activated_Plugin') == 'My-Custom-Plugin-Slug') {
        delete_option( 'Custom_Activated_Plugin' );

        if (!class_exists('WooCommerce')) {
            add_action('admin_notices', 'display_admin_notice');

            //Simple Call A Hook for Deactivate our plugin

            if (isset($_GET['activate'])) {

add_action('admin_init', 'default_load_plugin');

 * Display an error message when parent plugin is missing
function display_admin_notice()

Error: The Your Current Plugin Name plugin won't execute because the following required plugin is not active:Dependent Plugin Name. Please activate these plugin.

To programmatically check WordPress plugin dependencies, you can use the WordPress Plugin API functions get_plugins() and is_plugin_active(). Here's an example:

// Get all active plugins
$active_plugins = get_option('active_plugins');

// Get the list of required plugins for the current plugin
$required_plugins = array(

// Check if all required plugins are active
$all_plugins_active = true;
foreach ($required_plugins as $plugin) {
    if (!in_array($plugin, $active_plugins) || !is_plugin_active($plugin)) {
        $all_plugins_active = false;

if ($all_plugins_active) {
    // All required plugins are active
    // Do something here
} else {
    // Some required plugins are not active
    // Show an error message or take some other action

In this example, we first get the list of active plugins using the get_option() function with the active_plugins option name. We then define a list of required plugins for the current plugin, and check if all of them are active using a loop. We use the in_array() function to check if the plugin is in the list of active plugins, and the is_plugin_active() function to check if the plugin is actually active. If any of the required plugins are not active, we set the $all_plugins_active variable to false and break out of the loop.

Finally, we check the value of $all_plugins_active to determine if all required plugins are active, and take appropriate action.

Note that this approach assumes that the required plugins are installed and activated using the standard WordPress plugin activation process. If the required plugins are installed in a non-standard way, or if the plugin dependencies are more complex, you may need to use a different approach.

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