PHP Programming Fall 2013 Class Exercise: Control Structures I 1. If statement: Test whether the variable $orderQty is equal to zero, and when true print the message "order quantity zero!". 2. If-else statement: Given that form data for 'orderQty' is "posted" to a PHP program, code an if statement that tests whether 'orderQty' is missing or empty and when true assigns zero(0) to $orderQty, otherwise it assigns the value passed as 'orderQty' to $orderQty and prints "order quantity = $orderQty". 3. While loop: Construct a while loop with a statement block to input and print data from a file referenced by the pointer $fp with input data assigned to $dataIn. Have a "primer read" precede this loop. The loop should continue as long as the function feof($fp) returns false. In the loop body, print $dataIn, then input the next line of data. Revise this code to produce the same results without needing a "primer read". 4. For loop: Construct a for loop to print the squares of the numbers from 1 to 5. 5. Nested for loops: Use nested for loops to print a multiplication table for the digits from 1 to 5. 6. Foreach loop: Given that an fgetcsv function has been invoked to input a set of comma- separated values to be assigned to an array named $inputItems, prepare a foreach structure to iterate through $inputItems displaying each element value.