To some, this should seem a bit obvious and if I am insulting your intelligence by discussing it, I am sorry. But, one of the main reasons I want to discuss this topic is, I was asked this question in a job interview for Lockheed Martin.
What is the difference between i++ and ++i?
The answer is actually quite simple.
i++ first evaluates the value of i and then increments it
++i increments the value of i and then evaluates it
Here is a brief example to demonstrate what I mean.
// Example: i++
$i = 5;
echo "The value of i is " . $i++ ;
// Output "The value of i is 5"
// i = 6
// Example: ++i
$i = 5;
echo "The value of i is " . ++$i;
// Output "The value of i is 6"
// i = 6
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So, now if you are ever asked about this in an interview, you will have a response.
Happy programming!
