Updated 2/23/2020 at 8:45pm

Homework #2: Conditions and Input

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• Remember to follow all the standard Homework Requirements.
  
  
• This assignment will demonstrate:
  • Forms
  • Switches
  
  
• Make a new page for your site, and name it contactus.php. This will be a "Contact Us" page.
  
  
• Put an HTML link on your index.php page, which allows someone to navigate to your new "Contact Us" page.
  
  
• Highlight and copy the HTML div, form, and PHP if-else-if code below. Save the code to the body of your Contact Us page.

      <div id="formDiv">
        <?php
        if (!isset($_POST["formSubmitted"]))
        {
        ?>
        <form name="theForm" action="contactus.php" method="post">
          <input type="hidden" name="formSubmitted" value="1">
          <h3>Please select a state:</h3>
          <br>
          <input type="radio" name="theState" value="OK"> OK
          <br>
          <input type="radio" name="theState" value="TX"> TX
          <br>
          <input type="radio" name="theState" value="VA"> VA
          <br>
          <input type="radio" name="theState" value="WA"> WA
          <br>
          <br>
          <input type="submit" value="Expand your selection">
        </form>
        <?php
        }
        else
        {
        ?>
        <h3>The name of your state is:</h3>
        <?php
          echo "<h3>\n";
          if (isset($_POST["theState"]))
          {
            $theState = $_POST["theState"];
          }
          else
          {
            $theState = '';
          }
  
          if ($theState == "TX")
          {
            echo "Texas";
          }
          else if ($theState == "OK")
          {
            echo "Oklahoma";
          }
          else if ($theState == "VA")
          {
            echo "Virginia";
          }
          else if ($theState == "WA")
          {
            echo "Washington";
          }
          else
          {
            echo "Unknown";
          }
          echo "</h3>\n";
          echo "<p>Please <a href='contactus.php'>go back</a> and select another state.</p>\n";
        }
        ?>
      </div>
              

• Make sure the action attribute in the HTML <form> tag is the same as the filename for your Contact Us page, which should be contactus.php.
  
  
• Now change the Contact Us page so it uses a switch statement instead of the current if-else-if code. To be more specific, you will be replacing this code:

  
          if ($theState == "TX")
          {
            echo "Texas";
          }
          else if ($theState == "OK")
          {
            echo "Oklahoma";
          }
          else if ($theState == "VA")
          {
            echo "Virginia";
          }
          else if ($theState == "WA")
          {
            echo "Washington";
          }
          else
          {
            echo "Unknown";
          }
              

  with a switch statement that runs the proper echo statement based on the value in the variable $theState.
  
  
• Upload your Contact Us page to your class Web site.
  
  
• Test your page at your Web site by clicking your student number on the "Student Sites" page of this class site. Display your Contact Us page. Make a selection. Click the submit button and make sure the Contact Us page displays the correct value.