【发布时间】：2012-01-25 23:18:57
【问题描述】：
我对表单验证和处理还很陌生，事实上，这是我的第一次尝试，我创建了一个简单的联系表单，其中包含必填文本字段、cmets 文本区域和两个单选按钮。我已经阅读了许多基本的教程，并使用 PHP 编写了脚本。我遇到的问题是，如果表单未填写，当我单击提交时，我会被定向到一个新页面，该页面有一条错误消息，提示我需要填写我的姓名。但是，如果我填写我的姓名并单击提交，我会收到相同的消息，而不是为下一个字段指定的错误消息。当所有字段都被归档时，我什至会收到该消息。这是我的代码：
<?php
$myemail = "ysjostar072@gmail.com";
$name = check_input($_POST['name'], "Enter your name");
$company = check_input($_POST['company'], "Enter your company name");
$function = check_input($_POST['function'], "Provide an occassion");
$address = check_input($_POST['address'], "Enter your address");
$place = check_input($_POST['place'], "Enter your area code");
$number = check_input($_POST['number'], "Enter your number");
$mobile = check_input($_POST['mobile'], "Enter your mobile number");
$email = check_input($_POST['email'], "Enter a valid E-Mail address");
$client = check_input($_POST['client'], "Are you a client already? Please let us know");
$method = check_input($_POST['method'], "Choose your preferred method of contact");
$message = check_input($_POST['message'], "Enter your comments or description");
$date = check_input($_POST['date'], "Tell us when your event takes place");
$size = check_input($_POST['size'], "Tell us how big your presentation is going to be");
$subject = "Client from website";
$subject = striplashes($subject);
if(isset($_POST['button-submit'])) {
if (!isset($_REQUEST['email'])) {
header( "Location: index.html" );
}
else {
mail( "ysjostar072@gmail.com", "Feedback Form Results",
$message, "From: $email" );
header( "Location: thanks.html" );
}
}
if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/", $email))
{
show_error("E-mail address not valid");
}
$enquiry = "Hello!
Your contact form has been submitted by:
Name: $name
Company: $company
Event: $function
Address: $address
Place: $place
E-mail: $email
Contact number: $number
Mobile: $mobile
Current client: $Client
Comments: $message
My exhibition is on $date
Size: $size
Please contact me $method
End of message";
mail($myemail, $subject, $enquiry);
header('Location: thanks.html');
exit();
function check_input($data, $problem='')
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
if ($problem && strlen($data) == 0)
{
show_error($problem);
}
return $data;
}
function show_error($myError)
{
?>
<html>
<body>
<b>Please correct the following error:</b><br />
<?php echo $myError; ?>
</body>
</html>
<?php
exit();
}
?>
请帮帮我。我不知道我做错了什么。在此先感谢:)
这是 HTML 表单：
<form id="contact" method="post" action="sendmail.php" enctype="multipart/form-data">
<ul>
<li style="margin-bottom:15px; text-align:left"><label for="name">Vorname/Name*</label>
<input id="name" name="Name" type="text" value="" class="name-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="company">Firma*</label>
<input id="company" name="Company" type="text" value="" class="company-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="function">Funktion*</label>
<input id="function" name="Function" type="text" value="" class="function-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="address">Adresse*</label>
<input id="address" name="Address" type="text" value="" class="address-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="place">PLZ/Ort*</label>
<input id="place" name="Place" type="text" value="" class="place-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="number">Telefon*</label>
<input id="number" name="Number" type="text" value="" class="number-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="mobile">Mobiltelefon*</label>
<input id="mobile" name="Mobile" type="text" value="" class="mobile-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="email">E-Mail*</label>
<input id="email" name="Email" type="text" value="" class="email-field" /></li>
<li style="margin-bottom:15px; text-align:left">Wir sind bereits Kunde*
<input type="radio" name="Client" id="r1" value="Ja" />
<label for="r1">Ja</label>
<input type="radio" name="Client" id="r2" value="Nein" />
<label for="r2">Nein</label>
</li>
<li style="margin-bottom:15px; text-align:left">Kontaktieren Sie uns*
<input type="radio" name="method" id="r3" value="Per telefon" />
<label for="r3">Per telefon</label>
<input type="radio" name="method" id="r4" value="Per e-mail" />
<label for="r4">Per e-mail</label>
</li>
<li style="margin-bottom:15px; text-align:left"><label for="message">Bemerkungen*</label>
<textarea id="message" name="Message" type="text" value="" class="message-field" ></textarea></li>
<li style="margin-bottom:15px; text-align:left"><label for="date">Nächste Messe datum*</label>
<input id="date" name="Date" type="text" value="" class="date-field" /></li>
<li style="margin-bottom:15px; text-align:left"><label for="size">Standgrösse m sq*</label>
<input id="size" name="Size" type="text" value="" class="size-field" /></li>
<li style="margin-top:25px; margin-right:10px; text-align:left; color:#F00">*Diese Felder werden benötigt.</li>
<input type="submit" class="button-submit" id="button-submit" value="Senden" name="button-submit" />
</ul>
</form>
【问题讨论】：
-
check_input函数是怎么调用的，我想我们这里漏掉了一些代码。
标签： php forms email validation