Using WordPress ‘populate_network_meta’ PHP filter

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The populate_network_meta WordPress PHP filter allows you to modify the metadata of a network during its creation process.

Usage

add_filter('populate_network_meta', 'your_custom_function', 10, 2);

function your_custom_function($sitemeta, $network_id) {
    // your custom code here
    return $sitemeta;
}

Parameters

  • $sitemeta: array – Associative array of network meta keys and values to be inserted.
  • $network_id: int – ID of the network to populate.

More information

See WordPress Developer Resources: populate_network_meta

Examples

Set a custom value for a network

Set a custom value ‘custom_value’ with the key ‘custom_key’ for a newly created network.

add_filter('populate_network_meta', 'set_custom_value', 10, 2);

function set_custom_value($sitemeta, $network_id) {
    $sitemeta['custom_key'] = 'custom_value';
    return $sitemeta;
}

Set network language

Set the language of a newly created network to Spanish.

add_filter('populate_network_meta', 'set_network_language', 10, 2);

function set_network_language($sitemeta, $network_id) {
    $sitemeta['WPLANG'] = 'es_ES';
    return $sitemeta;
}

Enable default theme

Enable a default theme for a newly created network.

add_filter('populate_network_meta', 'enable_default_theme', 10, 2);

function enable_default_theme($sitemeta, $network_id) {
    $sitemeta['default_theme'] = 'your_theme_slug';
    return $sitemeta;
}

Disable comments

Disable comments for a newly created network by default.

add_filter('populate_network_meta', 'disable_comments', 10, 2);

function disable_comments($sitemeta, $network_id) {
    $sitemeta['default_comment_status'] = 'closed';
    return $sitemeta;
}

Set custom upload limit

Set a custom upload limit of 20MB for a newly created network.

add_filter('populate_network_meta', 'set_upload_limit', 10, 2);

function set_upload_limit($sitemeta, $network_id) {
    $sitemeta['fileupload_maxk'] = 20480;
    return $sitemeta;
}