Php 联系方式发送；空"；消息

我试图创建一个“联系我们”页面，但一旦你按下“发送”按钮，你会收到一封没有任何内容的空“空”邮件。那封邮件中没有“发件人”、“邮件”或“主题”，我找不到问题所在

下面是我的代码，contact.php：

<table width="400" border="0" align="center" cellpadding="3" cellspacing="1">
<tr>
<td><strong>Contact Form </strong></td>
</tr>
</table>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="1">
<tr>
<td><form name="form1" method="post" action="send_contact.php">
<table width="100%" border="0" cellspacing="1" cellpadding="3">
<tr>
<td width="16%">Subject</td>
<td width="2%">:</td>
<td width="82%"><input name="subject" type="text" id="subject" size="50"></td>
</tr>
<tr>
<td>Detail</td>
<td>:</td>
<td><textarea name="detail" cols="50" rows="4" id="detail"></textarea></td>
</tr>
<tr>
<td>Name</td>
<td>:</td>
<td><input name="name" type="text" id="name" size="50"></td>
</tr>
<tr>
<td>Email</td>
<td>:</td>
<td><input name="customer_mail" type="text" id="customer_mail" size="50"></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td><input type="submit" name="Submit" value="Submit"> <input type="reset" name="Submit2" value="Reset"></td>
</tr>
</table>
</form>
</td>
</tr>
</table>

<?php

// Contact subject
$subject ="$subject"; 

// Details
$message="$detail";

// Mail of sender
$mail_from="$customer_mail"; 

// From 
$header="from: $name <$mail_from>";

// Enter your email address
$to ='someone@somewhere.com';
$send_contact=mail($to,$subject,$message,$header);

// Check, if message sent to your email 
// display message "We've recived your information"
if($send_contact){
echo "We've recived your contact information";
}
else {
echo "ERROR";
}
?>

联系方式
主题
:
细节
:
名称
:
电子邮件
:

send_contact.php：

<table width="400" border="0" align="center" cellpadding="3" cellspacing="1">
<tr>
<td><strong>Contact Form </strong></td>
</tr>
</table>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="1">
<tr>
<td><form name="form1" method="post" action="send_contact.php">
<table width="100%" border="0" cellspacing="1" cellpadding="3">
<tr>
<td width="16%">Subject</td>
<td width="2%">:</td>
<td width="82%"><input name="subject" type="text" id="subject" size="50"></td>
</tr>
<tr>
<td>Detail</td>
<td>:</td>
<td><textarea name="detail" cols="50" rows="4" id="detail"></textarea></td>
</tr>
<tr>
<td>Name</td>
<td>:</td>
<td><input name="name" type="text" id="name" size="50"></td>
</tr>
<tr>
<td>Email</td>
<td>:</td>
<td><input name="customer_mail" type="text" id="customer_mail" size="50"></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td><input type="submit" name="Submit" value="Submit"> <input type="reset" name="Submit2" value="Reset"></td>
</tr>
</table>
</form>
</td>
</tr>
</table>

<?php

// Contact subject
$subject ="$subject"; 

// Details
$message="$detail";

// Mail of sender
$mail_from="$customer_mail"; 

// From 
$header="from: $name <$mail_from>";

// Enter your email address
$to ='someone@somewhere.com';
$send_contact=mail($to,$subject,$message,$header);

// Check, if message sent to your email 
// display message "We've recived your information"
if($send_contact){
echo "We've recived your contact information";
}
else {
echo "ERROR";
}
?>

---

你好，请尝试更改send\u contact.php的第一行

// Contact subject
$subject ="$subject"; 

// Details
$message="$detail";

// Mail of sender
$mail_from="$customer_mail";

致：

但是我建议你试试这个：
也许你想要这样的东西

$subject =$_POST['subject']; 

// Details
$message=$_POST['$detail'];

// Mail of sender
$mail_from=$_POST['customer_mail']; 

您在send_contact.php文件中定义的变量不正确

$subject ="$subject"; 

应该是

$subject = $_POST['subject'];

和你的其他战友一起。
查看表单教程和POST/GET/REQUEST，以更好地了解正在发生的事情