PHP Taskbook Level 2.1
Given a string, find the position of the first zero in the string.
Print to the console all numbers in the range from 1 to 1000, the sum of the first and second digits of which is equal to five.
Given an array, remove elements with a given value from it.
Given some array, for example, like this:
[1, 2, 3, 4, 5, 6]
Find the sum of the first half of the elements of this array.
