I've recently started learning PHP and I came across the abs() function. I am a bit confused about its usage and how it works. I tried to find documentation, but I'm still struggling to fully understand it.
From what I gathered, the abs() function seems to be used to return the absolute value of a number. However, I'm not quite sure how this differs from other mathematical functions like sqrt() or pow().
Could someone please explain to me what exactly the abs() function does and provide an example of its usage? I would really appreciate it!
Thanks in advance!