<?php 
        
        $number = 1;                    // set variable $number to 1
        $number = $number + 1;          // add one to variable $number (=2)
        
        $real = 1.23;                   // a variable can hold a real number
        $price = 11.99;
        
        $total = $number * $price;      // set total equal to number times price
        
        $s = "Hello world";             // a variable can hold a string of characters
        
        $a = array(1,2,3);              // create an array with three values, 1, 2 and 3
        
        $x = $a[0];                     // get the first element from the array (=1)
        $x = $a[0] + $a[1] + $a[2];     // add the three elements from the array (=6)
        
        $count = count($a);             // set $count equal to the number of elements (=3)
        $total = 0;                     // set the total to 0
        for ($i = 0; $i < $count; $i = $i + 1) {    // for each element in the array
            $element = $a[$i];          // get the ith element from the array
            $total = $total + $element; // add the element to the total
        }
        $average = $total / $count;     // set $average equal to the total divided by count
        
        $total = 0;                     // set total to 0 again
        foreach ($a as $element) {      // do the same loop with foreach
            $total = $total + $element; // add each element to the total
        } 
        $average = $total / $count;     // set $average equal to the total divided by count
        
        echo "rating = $average";       // displays: rating = 2
        
        $p = $_REQUEST[p];              // get the p parameter from the query
        if ($p == "PS2") {              // if it is equal to PS2
            echo "platform = $p";       // displays: platform = PS2
        }
    
    ?>