The following snippet uses PHP’s built-in array_diff function to return a new copy of a given array without any empty string values:
$arr = array('red', 'blue', '', 'yellow'); $newArr = array_diff($arr, array(''));
After the above code has executed,
$newArr will equal
['red', 'blue', 'yellow']. Notice how the empty string value is gone.
I want to note that
array_diff should typically be used over
array_filter removes any value that evaluates to
false, not just empty strings.
So in the following example, values such as
0 also get removed:
// You probably don't want to do this! $newArr = array_filter($arr);
array_diff can serve as a simple and handy way to clean up your PHP arrays.
I hope you found this article useful!