我一直在尝试将此表单实现到我的HTML(Bootstrap 4 alpha)网站中,但我无法正常工作。
让我们从目标开始:
我在互联网上找到了一些有用的帮助,PHP和HTML,我可以使用我需要的东西。但是,即使我上传原始代码而不更改任何内容,此表单也不起作用。
我认为我上传它的服务器可能不支持PHP,但它确实是,我甚至得到一个表单工作,只需要输入并将其发送到接收器,没有问题。
我没有开始工作的是在我的HTML中回显我的PHP文件的输出。我做错了什么?
HTML:
<form action="php/mail.php" role="form" method="post" class="">
<div class="form-group">
<label for="name" class="col-sm-2 control-label sr-only">Naam</label>
<input type="text" class="form-control form-control-sm form" id="name" name="name" placeholder="Name" value="<?php echo htmlspecialchars($_POST['name']); ?>">
<?php echo "<p class='text-danger'>$errName</p>";?>
</div>
<div class="form-group">
<label for="email" class="col-sm-2 control-label sr-only">Email</label>
<input type="email" class="form-control form-control-sm form" id="email" name="email" placeholder="your.name@example.com" value="<?php echo htmlspecialchars($_POST['email']); ?>">
<?php echo "<p class='text-danger'>$errEmail</p>";?>
</div>
<div class="form-group">
<label for="message" class="col-sm-2 control-label sr-only">Message</label>
<textarea class="form-control form-control-sm form" rows="4" name="message" placeholder="My Message..."><?php echo htmlspecialchars($_POST['message']);?></textarea>
<?php echo "<p class='text-danger'>$errMessage</p>";?>
</div>
<div class="form-group">
<label for="human" class="col-sm-2 control-label sr-only">2 + 3 = ?</label>
<input type="text" class="form-control form-control-sm form" id="human" name="human" placeholder="2 + 3 = ?">
<?php echo "<p class='text-danger'>$errHuman</p>";?>
</div>
<div class="form-group">
<input id="submit" name="submit" type="submit" value="Send" class="btn btn-primary btn-sm">
<input type="reset" value="Clear" class="btn btn-primary btn-sm">
</div>
<div class="form-group">
<?php echo $result; ?>
</div>
</form>
PHP:
<?php
if (isset($_POST["submit"])) {
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$human = intval($_POST['human']);
$from = 'Demo Contact Form';
$to = 'test@testmail.com';
$subject = 'Message from Contact Demo ';
$body = "From: $name\n E-Mail: $email\n Message:\n $message";
// Check if name has been entered
if (!$_POST['name']) {
$errName = 'Please enter your name';
}
// Check if email has been entered and is valid
if (!$_POST['email'] || !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
$errEmail = 'Please enter a valid email address';
}
//Check if message has been entered
if (!$_POST['message']) {
$errMessage = 'Please enter your message';
}
//Check if simple anti-bot test is correct
if ($human !== 5) {
$errHuman = 'Your anti-spam is incorrect';
}
// If there are no errors, send the email
if (!$errName && !$errEmail && !$errMessage && !$errHuman) {
if (mail ($to, $subject, $body, $from)) {
$result='<div class="alert alert-success">Thank You! I will be in touch</div>';
} else {
$result='<div class="alert alert-danger">Sorry there was an error sending your message. Please try again later</div>';
}
}
}
?>
我从中得到的结果是这样的:
在我看来,HTML文件并不执行PHP代码,只是显示原始代码。我尝试将HTML保存为.html和.php,两者都给出了不同但错误的结果。
答案 0 :(得分:0)
只是:
<?php if (isset($errName)) { echo "<p class='text-danger'>$errName</p>"; } ?>
适用于所有领域。
征求意见:
// Create this variable for your error detection
$hasError = FALSE;
// Check if name has been entered
if (!$_POST['name']) {
$errName = 'Please enter your name';
$hasError = TRUE;
}
// Check if email has been entered and is valid
if (!$_POST['email'] || !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
$errEmail = 'Please enter a valid email address';
$hasError = TRUE;
}
//Check if message has been entered
if (!$_POST['message']) {
$errMessage = 'Please enter your message';
$hasError = TRUE;
}
//Check if simple anti-bot test is correct
if ($human !== 5) {
$errHuman = 'Your anti-spam is incorrect';
$hasError = TRUE;
}
// If there are no errors, send the email
if ($hasError == FALSE) {
....
答案 1 :(得分:0)
正如文森特刚刚提到的,这应该是解决问题的解决方案,但它也可以有一些解释。
PHP只能回显现有变量,所以为了回应它们,它们需要存在,否则会引发错误。
基本上isset()
函数检查变量是否存在。 isset()
会返回PHP docs中提到的bool(true为false)。
您可以查看此示例以获取更多详细信息:W3School
答案 2 :(得分:0)
看起来很好,因为在使用之前没有使用isset()验证所有变量,如
if(isset($varialbe))
{
// ... use $varialbe here ...
}
你可以在三元运算符(条件)的帮助下使用它吗?true part:false part;像
$othervariable = (isset($varialbe))?$varialbe:'';
或
echo ((isset($varialbe))?$varialbe:'');
答案 3 :(得分:0)
首先,将error_reporting置于顶部。
error_reporting(0);
然后再次提交表格。确保表单文件必须以.php格式保存。
我可以看到你的文件代码应该是这样的:
<?php
error_reporting(0);
if (isset($_POST["submit"])) {
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$human = intval($_POST['human']);
$from = 'Demo Contact Form';
$to = 'test@testmail.com';
$subject = 'Message from Contact Demo ';
$body = "From: $name\n E-Mail: $email\n Message:\n $message";
// Check if name has been entered
if (!$_POST['name']) {
$errName = 'Please enter your name';
}
// Check if email has been entered and is valid
if (!$_POST['email'] || !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
$errEmail = 'Please enter a valid email address';
}
//Check if message has been entered
if (!$_POST['message']) {
$errMessage = 'Please enter your message';
}
//Check if simple anti-bot test is correct
if ($human !== 5) {
$errHuman = 'Your anti-spam is incorrect';
}
// If there are no errors, send the email
if (!$errName && !$errEmail && !$errMessage && !$errHuman) {
if (mail ($to, $subject, $body, $from)) {
$result='<div class="alert alert-success">Thank You! I will be in touch</div>';
} else {
$result='<div class="alert alert-danger">Sorry there was an error sending your message. Please try again later</div>';
}
}
}
?>
<form action="yourfilename.php" role="form" method="post" class="">
<div class="form-group">
<label for="name" class="col-sm-2 control-label sr-only">Naam</label>
<input type="text" class="form-control form-control-sm form" id="name" name="name" placeholder="Name" value="<?php echo htmlspecialchars($_POST['name']); ?>">
<?php echo "<p class='text-danger'>$errName</p>";?>
</div>
<div class="form-group">
<label for="email" class="col-sm-2 control-label sr-only">Email</label>
<input type="email" class="form-control form-control-sm form" id="email" name="email" placeholder="your.name@example.com" value="<?php echo htmlspecialchars($_POST['email']); ?>">
<?php echo "<p class='text-danger'>$errEmail</p>";?>
</div>
<div class="form-group">
<label for="message" class="col-sm-2 control-label sr-only">Message</label>
<textarea class="form-control form-control-sm form" rows="4" name="message" placeholder="My Message..."><?php echo htmlspecialchars($_POST['message']);?></textarea>
<?php echo "<p class='text-danger'>$errMessage</p>";?>
</div>
<div class="form-group">
<label for="human" class="col-sm-2 control-label sr-only">2 + 3 = ?</label>
<input type="text" class="form-control form-control-sm form" id="human" name="human" placeholder="2 + 3 = ?">
<?php echo "<p class='text-danger'>$errHuman</p>";?>
</div>
<div class="form-group">
<input id="submit" name="submit" type="submit" value="Send" class="btn btn-primary btn-sm">
<input type="reset" value="Clear" class="btn btn-primary btn-sm">
</div>
<div class="form-group">
<?php echo $result; ?>
</div>
</form>