Missing database tables on Multisite

[hupe13]

I have Plugin Check installed on a multisite installation and activated it on site 19. I see many errors in debug log about non existing tables in the database.

WordPress database error Table 'database.wp_19_pc_blogs' doesn't exist for query
WordPress database error Table 'database.wp_19_pc_sitemeta' doesn't exist for query
WordPress database error Table 'database.wp_19_pc_usermeta' doesn't exist for query
WordPress database error Table 'database.wp_19_pc_users' doesn't exist for query

Apparently these tables are not created.

[swissspidy]

These are actually standard tables created by WordPress itself. There seems to be something wrong with your Multisite installation.

Also note that PCP doesn't have full Multisite support at the moment, see #64.

[hupe13]

The tables wp_blogs, wp_sitemeta, wp_usermeta and wp_users exist, but not with "_19_pc" in the name.

[dd32]

This sounds like PCP not setting the base_prefix correctly during it's table_prefix switching for runtime tests;

plugin-check/includes/Checker/Runtime_Environment_Setup.php

Lines 43 to 44 in a1ecb29

	// Set the new prefix.
	$old_prefix = $wpdb->set_prefix( $table_prefix . 'pc_' );

[davidperezgar]

Yes! It seems that's the problem.