How to create a new column in the Manage Sites table

Add custom columns to the Manage Sites table using PHP code snippets in the Custom Dashboard extension. Display custom data like cURL version or other site information.

You can add custom columns to the Manage Sites table to display additional site information. This guide shows how to create columns using PHP filters in the Custom Dashboard extension.

What You’ll Learn

• How to add custom columns to the Manage Sites table
• How to populate columns with site data
• How to position columns in the table

Prerequisites

• Custom Dashboard extension (free)

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Example: Add a cURL Version Column

This example adds a column that displays the cURL version for each child site.

1. Install Custom Dashboard

   Install the Custom Dashboard extension.

2. Open the extension

   Navigate to MainWP > Add-ons > Custom Dashboard.

3. Add the PHP code

   Go to the PHP tab and add this code:

   add_filter( 'mainwp_sitestable_getcolumns', 'mycustom_sites_table_column', 10 );
   function mycustom_sites_table_column( $cols ) {
       $cols['child_curl_version'] = 'cURL Version';
       return $cols;
   }
   
   add_filter( 'mainwp_sitestable_item', 'mycustom_sitestable_item', 10 );
   function mycustom_sitestable_item( $item ) {
       $options = apply_filters( 'mainwp_getwebsiteoptions', array(), $item['id'], 'site_info' );
       $website_info = json_decode( $options, true );
       if ( is_array( $website_info ) && isset( $website_info['child_curl_version'] ) ) {
           $item['child_curl_version'] = $website_info['child_curl_version'];
       } else {
           $item['child_curl_version'] = '';
       }
       return $item;
   }
   
4. Save changes

   Click Save Changes.

5. Verify the column

   Navigate to MainWP > Sites > Manage Sites to see the new column.

   
6. Position the column

   Drag and drop the column header to your preferred position.

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How It Works

The code uses two WordPress filters:

Filter	Purpose
mainwp_sitestable_getcolumns	Registers the new column in the table header
mainwp_sitestable_item	Populates the column with data for each row

Code Structure

// Step 1: Register the column
add_filter( 'mainwp_sitestable_getcolumns', 'my_custom_column', 10 );
function my_custom_column( $cols ) {
    $cols['column_key'] = 'Column Header';  // Key must be unique
    return $cols;
}

// Step 2: Populate the column data
add_filter( 'mainwp_sitestable_item', 'my_custom_item', 10 );
function my_custom_item( $item ) {
    $item['column_key'] = 'Value';  // Key matches the column key above
    return $item;
}

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Available Site Data

You can access various site information through the mainwp_getwebsiteoptions filter:

$options = apply_filters( 'mainwp_getwebsiteoptions', array(), $item['id'], 'site_info' );
$website_info = json_decode( $options, true );

Common available fields include:

• child_curl_version - cURL version
• child_openssl_version - OpenSSL version used by cURL
• child_version - MainWP Child version
• db_size - Database size
• debug_mode - Whether WordPress debug mode is enabled
• format_datetime - Site timezone, date format, and time format settings
• ip - Server IP address
• memory_limit - PHP memory limit
• mysql_version - MySQL version
• phpversion - PHP version
• site_lang - Site locale
• site_public - Search engine visibility value
• themeactivated - Active theme name
• wpversion - WordPress version

child_site_info is not a field returned by site_info. The site_info option already contains the available site data as an array.

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Other Column Examples

• Create a column that outputs any value or HTML you assign to $item['column_key']

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Self-Check Checklist

• Custom Dashboard extension installed
• PHP code added and saved
• New column appears in Manage Sites table
• Column displays correct data
• Column positioned as desired

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Related Resources

• MainWP User Interface - Table customization overview
• Custom Dashboard Extension - Extension documentation