Remove all array elements that do not match specific condition

Question

I\'ve been looking into array_map but not sure if this is the best way to do it.

I am currently getting the following array returned from my scandir

Answer 1

You should be looking at array_filter() instead

$result = array_filter(
    $originalArray,
    function($value) {
        return (strpos($value, 'post-') === 0);
    }
);

Though using glob() rather than scandir() would have allowed you to do the filter while actually retrieving the directory list