Function and usage of get_blog_count() in wordpress

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    2024-01-06T16:09:06+00:00

    The get_blog_count() function in WordPress is used to get the number of active sites (or blogs) in a multisite installation. Here's a detailed explanation and sample usage:

    Function Signature:

    get_blog_count( int|null $network_id = null ): int
    

    Function Description:

    • Purpose: Retrieves the count of active sites in a WordPress multisite network.
    • Behavior: The function returns the number of active sites (blogs) on a specified network.
    • Caching: The count is cached and updated twice daily, which means it does not reflect a real-time count of the sites but rather a periodically updated count.

    Parameters:

    • $network_id: (int|null) (Optional)
      • Type: Integer or null.
      • Description: The ID of the network for which you want to get the site count.
      • Default: null, which implies the current network in use.

    Return Value:

    • Type: Integer (int)
    • Description: Returns the number of active sites on the specified network.

    Usage Example:

    Scenario 1: Get Count for Current Network

    // Get the count of active sites in the current network
    $site_count = get_blog_count();
    echo 'Number of active sites: ' . $site_count;
    

    This code will output the number of active sites in the current network.

    Scenario 2: Get Count for a Specific Network

    // Set the network ID
    $network_id = 2;
    
    // Get the count of active sites in the specified network
    $site_count = get_blog_count($network_id);
    echo 'Number of active sites in network ' . $network_id . ': ' . $site_count;
    

    This code will output the number of active sites in the network with the ID of 2.

    Notes:

    • This function is particularly useful for administrators of WordPress multisite networks to get an overview of the number of active sites.
    • It's important to remember that the count is not live but updated periodically, so there might be a slight discrepancy between the actual count and the count returned by this function.

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