PHP Taskbook Level 3.1
You are given a number. Check that the digits of this number are arranged in ascending order.
Given an array:
[1, '', 2, 3, '', 5]
Remove all empty strings from the array.
Given an array:
[
[2, 1, 4, 3, 5],
[3, 5, 2, 4, 1],
[4, 3, 1, 5, 2],
]
Sort the elements in each subarray.
Two arrays are given:
$arr1 = [1, 2, 3];
$arr2 = [1, 2, 3, 4, 5];
Remove extra elements from the end of the larger array so that the lengths of the arrays become the same.
