//Pre-Increment $x = 10; echo "Before Pre-Increment :: ". $x .'
'; echo "On Pre-Increment :: ". ++$x .'
'; echo "After Pre-Increment :: ". $x .'

'; //Post-Increment $x = 15; echo "Before Post-Increment :: ". $x .'
'; echo "On Post-Increment :: ". $x++ .'
'; echo "After Post-Increment :: ". $x .'

'; //Pre-Decrement $x = 25; echo "Before Pre-Decrement :: ". $x .'
'; echo "On Pre-Decrement :: ". --$x .'
'; echo "After Pre-Decrement :: ". $x .'

'; //Post-Decrement $x = 35; echo "Before Post-Decrement :: ". $x .'
'; echo "On Pre-Decrement :: ". $x-- .'
'; echo "After Post-Decrement :: ". $x;
Hello World!