The Secret Life of “Magic Null” in PHP PHP 8 has started a tightening in native functions arguments: every version brings stricter checks on calls to common functions. Gone are the days of passing null into a function expecting an integer and hoping for the best. Today, usort($arr, null) or array_walk($arr, null) will instantly crash […]
The three nothings of PHP Mathematicians have the concept of infinity, which represents something that cannot be topped. Strangely enough, infinities come in different sizes : some infinities are larger than others. That sounds quite paradoxical, yet somewhat understandable. And yet, there are no less than three nothings in PHP. On the other hand, PHPians, […]


