Problem in $wpdb->insert

[tazotodua]

in includes/wp-db.php, line 1976, there is:

	$data = $this->process_fields( $table, $data, $format );
		if ( false === $data ) {
			return false;
		}

so, when using $wpdb->insert commands in plugins, sometimes we get 'false', without knowing an error. at least, that line should set i.e. $wpdb->last_error = 'array not processed',
and then we could have an idea why insert returned false. what's more, such query is not registered with ->last_query and it even deteriorates the debuging of error. have spent 3 hours to find out why my plugin's insert didnt work...

please, enrich that area.

[tazotodua]

my DB column (the column where happens problem) is varchar(20) and strip_invalid_text strips it :

however, all these problems going on, as, user dont know what happens and like me, may have to spend 3 hours.

i think all those errors and issues should be somewhere outputed (like: ' error: column "XYZ" char length is less then your passed data "abcdefged....." !

[dd32]

Duplicate of #32315.