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在我進入它之前，我想說，這確實從我的本地服務器發送電子郵件，所以我已經設置了一切。添加此表單驗證後，它不再發送電子郵件或顯示錯誤。它只是刷新頁面。我是PHP編程的新手，所以我確定我只是有一個if語句錯誤的順序或類似的東西。聯繫表格不顯示錯誤信息或發送電子郵件
HTML
<section id="contact">
<h1 class="section-header">Contact Us Directly</h1>
<h4 class="text-center">Have any quesitons not answered in the <span><a href="questions.php">Questions Page</a></span>.</h4>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST">
<label for="fname">First Name</label>
<input type="text" id="fname" name="firstname" value="<?php $firstname ?>" placeholder="Your name.." tabindex="1" autofocus>
<span class="error"><?php $firstname_error ?></span>
<label for="lname">Last Name</label>
<input type="text" id="lname" name="lastname" value="<?php $lastname ?>" placeholder="Your last name.." tabindex="2">
<span class="error"><?php $lastname_error ?></span>
<label for="email">Email</label>
<input type="text" id="email" name="email" value="<?php $email ?>" placeholder="Your email.." tabindex="3">
<span class="error"><?php $email_error ?></span>
<label for="message">Message</label>
<textarea id="subject" name="message" value="<?php $message ?>" placeholder="Write something.." style="height:200px" tabindex="4"> </textarea>
<span class="error"><?php $message_error ?></span>
<input type="submit" value="Submit" tabindex="5">
<span class="success"><?php $success ?></span>
</form>
</section>
PHP
<?php
$firstname_error = $lastname_error = $email_error = $message_error = "";
$firstname = $lastname = $email = $message = $success = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty($_POST["firstname"])) {
$firstname_error = "First name is required";
} else {
$firstname = test_input($_POST["firstname"]);
// check if name only contains letters and whitespace
if (!preg_match("/^[a-zA-Z ]*$/",$firstname)) {
$firstname_error = "Only letters and white space allowed";
}
}
if (empty($_POST["lastname"])) {
$lastname_error = "Last name is required";
} else {
$lastname = test_input($_POST["lastname"]);
// check if name only contains letters and whitespace
if (!preg_match("/^[a-zA-Z ]*$/",$lastname)) {
$lastname_error = "Only letters and white space allowed";
}
}
if (empty($_POST["email"])) {
$email_error = "Email is required";
} else {
$email = test_input($_POST["email"]);
// check if e-mail address is well-formed
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$email_error = "Invalid email format";
}
}
if (empty($_POST["message"])) {
$message = "";
} else {
$message = test_input($_POST["message"]);
}
if ($firstname_error == '' and $lastname_error == '' and $email_error == '' and $message_error == ''){
$message_body = '';
unset($_POST['submit']);
foreach ($_POST as $key => $value){
$message_body .= "$key: $value\n";
}
$EmailFrom = localhost;
$EmailTo = "[email protected]";
$Subject = "New Order From tabletscreenfixer.com";
if (mail($EmailTo, $Subject, $message)){
$success = "Message sent, thank you for contacting us!";
$firstname = $lastname = $email = $message = '';
}
}
}
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
這是一些很好的建議！我有一個問題，但是當我選擇提交按鈕，它只是重置頁面，這是因爲我設置我的表單的方式？ – cosmichero2025
form action =決定當你點擊提交按鈕時會發生什麼。在這種情況下，它會再次調用相同的頁面並重新加載它。每次你點擊它，Web服務器被再次調用來渲染頁面，並再次執行所有的HTML和PHP代碼... –