CUNY Academic Commons

<?php

global $wpdb;

$themes = wp_get_themes();

$data = [];

$allowed_themes = (array) get_site_option( 'allowedthemes' );

foreach ( $themes as $theme_slug => $theme_data ) {

	$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM wp_network_themes WHERE stylesheet = %s", $theme_slug ) );

	$is_allowed = isset( $allowed_themes[ $theme_slug ] );

	$data[] = [

		0 => $theme_slug,

		1 => $theme_data->name,

		2 => $count,

		3 => (int) $is_allowed,

	];

}

$now = date( 'Y-m-d' );

$csv = ABSPATH . '/theme-usage-' . $now . '.csv';

$h = fopen( $csv, 'w' );

fputcsv(

	$h,

	array(

		'Slug',

		'Name',

		'Site Count',

		'Enabled?',

	)

);

foreach ( $data as $theme_stats ) {

	fputcsv( $h, $theme_stats );

}

fclose( $h );

print_r( $data );