- Implement The Following Calculator E G 1 Based On The Comments In 430 Php Template Only The Code Written B 1 (16.65 KiB) Viewed 38 times
O localhost/430/430fa.php NJCU Online Calculator Operator Selection
1 2 3 4 5 6 7 8 9 10 11 12 13 <html> <head> <title>Final</title> <?php $v1=null; $operator='Operator Selection'; $v2=null; $result=null; if (!isset($_POST['v1'])&&!isset($_POST['operator'])&&!isset($_POST['V2'])){ } else { if (1/*Write a boolean expression to replace the "1", which indicates if the user typed value1 and value2 are all numbers and operator is selected(10pts)*//*Staring Point*//*Er /*Assign the information collected from the form to $v1, $operator and $v2 correspondingly(10pts)*/ /*Staring Point*/ /*Ending Point*/ /*Write a switch-case section in order calculate the $result with $v1, $operator and $v2(10pts)*/ /*Staring Point*/ /*Ending Point*/ } else { /*Write a statement to output a JS alert window with the content of "Please enter two valid numbers and select an operator!"(10pts)*/ /*Staring Point*/ /*Ending Point*/ 14 15 16 17 18 19 20 21 22 23 24 25 }
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ?> </head> <body> <div class="container"> <!--Add a header element with the content of green color "NJCU Online Calculator" (10pts)--> <!--Staring Point--> <!--Ending Point--> <!--Add a opening tag of form element using "post" method and subbmitting the information of the form to cuttent php file(10pts) --> <!--Staring Point --> <!--Ending Point--> <input type="text" id="v1" name="v1" value="<?php echo $v1;?>"> <select id="operator" name="operator"> <!--Add an attribute for the option element in order to make itself as the default option element of the select element(10pts)--> <!--Staring Point--><option id="default" name="default"><!--Ending Point--> <!--Add the content of the option element in order to display the value of $operator using php(10pts) --> <!--Staring Point--> <!-- Ending Point--> </option> <!--Add the option elements in order to display +, -, *, 1, % operators (10pts)--> <!--Staring Point--> <!--Ending Point--> </select> <input type="text" id="v2" name="v2" value="<?php echo $v2;?>"> <input type="submit" value="="> <!--Add an html element in order to display the $result using php(10pts)--> <!--Staring Point--> <!--Ending Point--> </form> </div> <script> if (window.history.replaceState) { window.history.replaceState( null, null, window.location.href); } </script> </body> </html> 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61