TIL how to remove empty array keys that don't hold any value, e.g. when passing multiple query parameters in an array via GET, the
array_filter function will help to clean your array.
array_filter — Filters elements of an array using a callback function […]
Iterates over each value in the array passing them to the callback function. […]
If no callback is supplied, all empty entries of array will be removed.
In its simplest form, suitable for the use case from above, the
array_filter function looks like this:
$params = ; $params = $_GET( $params ); $params = array_filter( $params );
This code will return the array with only the keys that do hold a value. There’s always something new to learn…
Learn more about array_filter in the PHP.net manual