PHP发送电子邮件消息不工作

我需要帮助我的php联系人表单，这是错误的编码

HTML代码：

<div id="contact_form" >
<form method="post" name="contact" action="contact.php">
<label for="author" style="font-size:14px;">Your Full Name:</label> 
<input type="text" id="author" name="name" class="input_field" />
<div class="clear h20"></div>
<label for="email" style="font-size:14px;">Your Phone Number/Email:</label
<input type="text" id="email" name="email" class="input_field" />

<div class="clear h20"></div>
<label for="text" style="font-size:14px;">Message:</label> 
<textarea id="text" name="comment" rows="0" cols="0" class="required"></textarea>
<div class="clear h20"></div>

<input style="font-size:16px;" type="submit" name="submit" value="Send"  />
</form>
</div> 

您的全名：
您的电话号码/电子邮件：您无法关闭支架！
有效代码为：

    <?php
if(isset($_POST['submit'])) {
    $to = "xxx@gmail.com";
    $subject = "Contact Us";

// data the visitor provided
    $name_field = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
    $email_field = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);
    $comment = filter_var($_POST['comment'], FILTER_SANITIZE_STRING);

//constructing the message
    $body = " From: $name_field\n\n E-Mail: $email_field\n\n Message:\n\n    $comment";

// ...and away we go!
    mail($to, $subject, $body);
}
?>

您不能关闭支架！
有效代码为：

    <?php
if(isset($_POST['submit'])) {
    $to = "xxx@gmail.com";
    $subject = "Contact Us";

// data the visitor provided
    $name_field = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
    $email_field = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);
    $comment = filter_var($_POST['comment'], FILTER_SANITIZE_STRING);

//constructing the message
    $body = " From: $name_field\n\n E-Mail: $email_field\n\n Message:\n\n    $comment";

// ...and away we go!
    mail($to, $subject, $body);
}
?>

您忘记在代码末尾关闭{

<?php
if(isset($_POST['submit'])) {
$to = "xxx@gmail.com";
$subject = "Contact Us";

// data the visitor provided
$name_field = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
$email_field = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);
$comment = filter_var($_POST['comment'], FILTER_SANITIZE_STRING);

//constructing the message
$body = " From:" .$name_field."\n\n E-Mail: ".$email_field."\n\n     Message:\n\n    ".$comment";

// ...and away we go!
mail($to, $subject, $body);
}
?>

您忘记在代码末尾关闭{

<?php
if(isset($_POST['submit'])) {
$to = "xxx@gmail.com";
$subject = "Contact Us";

// data the visitor provided
$name_field = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
$email_field = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);
$comment = filter_var($_POST['comment'], FILTER_SANITIZE_STRING);

//constructing the message
$body = " From:" .$name_field."\n\n E-Mail: ".$email_field."\n\n     Message:\n\n    ".$comment";

// ...and away we go!
mail($to, $subject, $body);
}
?>

你使用的是wamp还是Xamp？如果是，是在线还是离线。你在哪里发帖？请有人发现代码中的错误，因为我不想重新更改整个编码…请有人在服务器上在线。你在使用wamp还是Xamp？如果是，是在线还是离线。你在哪里发帖？请有人找到代码中的错误是因为我不想重新更改整个代码…请允许guysit在服务器上联机可能重复解释他在哪里这样做会有帮助？我不明白…我仍然是一个noob a编程人员，在你的帮助下，我可以改进myself@user2135539它说：解析错误：语法错误，意外'“'in/contact.php on line 12可能会解释他在哪里这样做会有帮助吗？我不明白……我仍然是一个nooba编程高手，在你的帮助下，我可以提高myself@user2135539它在第12行的/contact.php中显示：Parse error:syntax error，意外的'''