WordPress Meta Query (Basic Example)»
Meta Queries compare multiple keys and values.
WP Query, WP/CP | Type: PHP
WordPress Template Tags»
Sometimes you need to turn a WP template tag into a PHP variable, so you can construct a proper bit of code.
PHP, WP/CP | Type: PHP
WP_query with Events Grouped by Month»
This is intriguing, but I've not tested it. Check the 2 links given with this solution.
ACF, WP Query, WP/CP | Type: PHP
WP_query with Events Grouped by Month II»
Also untested.
WP Query, WP/CP | Type: PHP