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St. Name: ………………………………. St. #: …………………………………. Philadelphia University Lecturer(s): Faculty of IT Department of MIS Internal examiner: Examination Paper --------------------------------------------------------------------------------------- (731213) Introduction to Web Programming Information for Candidates This examination paper contains 4 questions totaling 20 marks. Advices to Candidates Attempt all questions. Read all questions carefully before answering. Allocate the available exam time to given questions properly Write your answers clearly. ------------------------------------------------------- I. Basic Notions Objectives: the aim of the following question is to evaluate your basic knowledge. Q1: Select the correct answer from the choices given for the following questions: [3 marks] 1) What does PHP stand for: a) Proccessing Homepages b) Hypertext Preprocessor c) Proccessing Hyperlinks d) None of the above 2) What will be printed on the screen after executing the following PHP code segment? $s="1a2b3c"; $sum=$s+5; echo $sum; a) 6 b) 8 c) 11 d) None of the above 3) What will the value of $x be after executing the following: $x= max(8, floor(3.3), 7, 4*2, min(9, 10, 11), rand(-9,9)); a) 10 b) 9 c) 11 Page 1 of 5 d) 8 Q2: Given the following 2 PHP pages, what is the output after calling b.php page? Page 1: a.php <?php Echo "WELCOME.<BR>"; define("Y", "0"); define("y", "1"); ?> Page 2: b.php <?php include("a.php"); $y = 5; $Y = 10; echo $y++ + y; echo "<BR>"; echo y + Y; echo "<BR>"; echo --$Y + $y++; echo "<BR>"; echo --$y + 2; //echo ++Y; $y+=2; echo "<BR>"; echo $y + y + $Y + Y; ?> [3 marks] WELCOME 6 1 15 8 18 II. Familiar problem solving Objectives: the aim of the following question is to evaluate your capabilities in solving familiar cases. Q3: A) Find the errors in the below code and correct them: <html> <body> CARS: <BR> Car Type: <BR> <form action='GET'> BMW <input type=radio name=r1 value=BMW></BR> FORD <input type=radio name=r2 value=FORD></BR> HONDA <input type=radio name=r3 value=HONDA></BR> Car Description:<BR> <input type=textarea columns='20' rows='10'></textarea> </BR> </form> <input type='submit' value= order car> </body> </html> <?php ECho $_POST['r1']; ?> Page 2 of 5 [4 marks] Solution: <html> <body> CARS: <BR> Car Type: <BR> <form method='GET'>//.5mark BMW <input type=radio name=r1 value=BMW></BR>//1mark FORD <input type=radio name=r1 value=FORD></BR> HONDA <input type=radio name=r1 value=HONDA></BR> Car Description:<BR> <textarea cols='20' rows='10'></textarea>//1mark </BR> <input type='submit' value= "order car">//.5mark </form> </body> </html> <?php EcHo “Your car type is:”. $_GET['r1'];//1mark ?> B) Show the output of the previous code (As will be shown on the browser). Page 3 of 5 [3 marks] III. Unfamiliar problem solving Objectives: the aim of the following question is to evaluate your capabilities in solving unfamiliar cases. Q4: Write a PHP Web application that consists of 2 pages; area.html and results.php. The area.html page contains a form that will be submitted to results.php page. A) The first file (area.html) is as shown below: [4 marks] B) For the data entered in the area.html page, write a PHP program in the results.php page that shows the area of the square or circle (depends on the user's selection). Hint: Square's area= L*L, // L is the square's side's length Circle's area= pi*r*r,// r is the radius and pi=3.14 [3 marks] Solution: Area.html <html> <form action=’results.php’> Enter a number: <input type=text name='a'> <br><br> Choose a shape: <select name='ss'> <option value="s"> square </option> <option value="c"> circle </option> </select> <br> <br> </br> <input type='submit' value='calculate area'> </form> Page 4 of 5 </html> results.php <?php if($_REQUEST['ss']=="s") echo $_REQUEST['a']*$_REQUEST['a']; else echo 3.14*$_REQUEST['a']*$_REQUEST['a']; ?> GOOD LUCK Page 5 of 5
