podlove / podlove-subscribe-button-wp-plugin

helper.php

<?php

namespace PodloveSubscribeButton;

function for_every_podcast_blog( $callback ) {
	global $wpdb;

	$plugin  = basename( \PodloveSubscribeButton\PLUGIN_DIR ) . '/' . \PodloveSubscribeButton\PLUGIN_FILE_NAME;
	$blogids = $wpdb->get_col( "SELECT blog_id FROM " . $wpdb->blogs );

	if ( ! is_array( $blogids ) )
		return;

	foreach ( $blogids as $blog_id ) {
		switch_to_blog( $blog_id );
		if ( is_plugin_active( $plugin ) ) {
			$callback();
		}
		restore_current_blog();
	}
}

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