<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <!-- responding to refactored three-value-form2.php by: Sharon Tuttle last modified: 2016-04-11 --> <head> <title> responding to three-value-form2.php </title> <meta charset="utf-8" /> <link href="http://users.humboldt.edu/smtuttle/styles/normalize.css" type="text/css" rel="stylesheet" /> <link href="three-value-form.css" type="text/css" rel="stylesheet" /> </head> <body> <h1> quick'n'sleazy response to three-value-form2.php </h1> <?php // checking the passed values (because application // tier MUST do this, no matter how much // client-side checking is done -- anyone // can try to LEAD to here...!) // trim will strip whitespace from the beginning and // end of a string $value1 = trim(htmlspecialchars($_GET['first'])); $value2 = trim(htmlspecialchars($_GET['second'])); $value3 = trim(htmlspecialchars($_GET['third'])); if (($value1 == "") || ($value2 == "") || ($value3 == "")) { ?> <p id="errors"> MUST fill in all textfields before submit! </p> <form action="three-value-form2.php" method="get"> <input type="submit" value="try again" /> </form> <?php } else if (! is_numeric($value2)) { ?> <p id="errors"> 2nd textfield MUST contain a number! </p> <form action="three-value-form2.php" method="get"> <input type="submit" value="try again" /> </form> <?php } else { ?> <p> form's contents: </p> <!-- remember, we called htmlspecialchars on the entered values above... --> <ul> <li> first textfield's value: <?= $value1 ?> </li> <li> second textfield's number multiplied by 10: <?= $value2 * 10 ?> </li> <li> third textfield's value: <?= $value3 ?> </li> </ul> <form action="three-value-form2.php" method="get"> <input type="submit" value="done" /> </form> <?php } require_once("328footer-better.html"); ?> </body> </html>