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validation/index.php
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Validation</title> | |
| <style> | |
| .error { | |
| color: #FF0000; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <?php | |
| $nameErr = $addrErr = $emailErr = $howManyErr = $favFruitErr = ""; | |
| $name = $address = $email = $howMany = ""; | |
| $favFruit = array(); | |
| if ($_SERVER["REQUEST_METHOD"] == "POST") { | |
| if (empty($_POST["name"])) { | |
| $nameErr = "Missing"; | |
| } | |
| else { | |
| $name = $_POST["name"]; | |
| } | |
| if (empty($_POST["address"])) { | |
| $addrErr = "Missing"; | |
| } | |
| else { | |
| $address = $_POST["address"]; | |
| } | |
| if (empty($_POST["email"])) { | |
| $emailErr = "Missing"; | |
| } | |
| elseif (!filter_var($_POST["email"], FILTER_VALIDATE_EMAIL)) { | |
| $emailErr = "Invalid email format."; | |
| $email = $_POST["email"]; | |
| } | |
| else { | |
| $email = $_POST["email"]; | |
| } | |
| if (!isset($_POST["howMany"])) { | |
| $howManyErr = "You must select 1 option"; | |
| } | |
| else { | |
| $howMany = $_POST["howMany"]; | |
| } | |
| if (empty($_POST["favFruit"])) { | |
| $favFruitErr = "You must select 1 or more"; | |
| } | |
| else { | |
| $favFruit = $_POST["favFruit"]; | |
| } | |
| $brochure = $_POST["brochure"]; | |
| if (!$nameErr && !$addrErr && !$emailErr && !$howManyErr && !$favFruitErr) { | |
| echo "Success!<br>"; | |
| $options = array( $name, $address, $email, $howMany, $favFruit, $brouchure); | |
| foreach ( $options as $option ) { | |
| if (is_array($option)) { | |
| echo join(", ", $option) . "<br>"; | |
| } else { | |
| echo "$option" . "<br>"; | |
| } | |
| } | |
| } | |
| } | |
| ?> | |
| <form method="POST" | |
| action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"> | |
| Name <input type="text" name="name" value="<?php echo htmlspecialchars($name);?>"> | |
| <span class="error"><?php echo $nameErr;?></span> | |
| <br> | |
| Address <input type="text" name="address" value="<?php echo htmlspecialchars($address);?>"> | |
| <span class="error"><?php echo $addrErr;?></span> | |
| <br> | |
| Email <input type="text" name="email" value="<?php echo htmlspecialchars($email);?>"> | |
| <span class="error"><?php echo $emailErr;?></span> | |
| <br> | |
| <input type="radio" name="howMany" | |
| <?php if (isset($howMany) && $howMany == "zero") echo "checked"; ?> | |
| value="zero"> 0 | |
| <input type="radio" name="howMany" | |
| <?php if (isset($howMany) && $howMany == "one") echo "checked"; ?> | |
| value="one"> 1 | |
| <input type="radio" name="howMany" | |
| <?php if (isset($howMany) && $howMany == "two") echo "checked"; ?> | |
| value="two"> 2 | |
| <input type="radio" name="howMany" | |
| <?php if (isset($howMany) && $howMany == "twoplus") echo "checked"; ?> | |
| value="twoplus"> More than 2 | |
| <span class="error"><?php echo $howManyErr; ?></span> | |
| <br> | |
| <select name="favFruit[]" size="4" multiple=""> | |
| <?php | |
| $options = array("apple", "banana", "plum", "pomegranate", "strawberry", "watermelon"); | |
| foreach ($options as $option) { | |
| echo '<option value="' . $option . '"'; | |
| if (in_array($option, $favFruit)) { | |
| echo " selected"; | |
| } | |
| echo ">" . ucfirst($option) . "</option>"; | |
| } | |
| ?> | |
| </select> | |
| <span class="error"><?php echo $favFruitErr; ?></span> | |
| <br> | |
| Would you like a brochure? <input type="checkbox" name="brochure" value="Yes" <?php if ($brochure) { echo "checked"; } ?>> | |
| <br> | |
| <input type="submit" name="submit" value="Submit"> | |
| </form> | |
| </body> | |
| </html> |