php邮件语法错误

$mail_body = '<html>
<body style="background-color:#CCC; color:#000; font-family: Arial, Helvetica, sans-serif; line-height:1.8em;">
<h3><a href="http://www.grillontherock.com"><img src="http://i.imgur.com/OODKT9h.png" alt="GR" width="194" height="123" border="0"></a> 
</h3>
<p>Hello ' . $name . ',</p>
<p>You can make this out to be just like most any web page or design format you require using HTML and CSS.</p>
<p>Grill on the Rock </p>
<hr>
<p>To opt out of receiving this newsletter,  <a href="http://grillontherock.x10host.com/email/optout.php?e=' . $email . '">click here</a> and we will remove you from the listing immediately.</p>
</body>
</html>';

        $to = "$email";
        $subject = "Example Grill on the Rock Email";
        $from="info@grillontherock.com";

        $mail_result = mail($to, $subject, $mail_body, "From:".$from);

    }
    if($mail_result){
        echo "Email has been sent successfully";
    }

I am having problem with sending email with php and html.

This code works perfectly fine but the email I am getting is

enter image description here

but when I use double quotation for html file php code greys out for some reason.

$mail_body = "<html>
<body style="background-color:#CCC; color:#000; font-family: Arial, Helvetica, sans-serif; line-height:1.8em;">
<h3><a href="http://www.grillontherock.com"><img src="http://i.imgur.com/OODKT9h.png" alt="GR" width="194" height="123" border="0"></a> 
</h3>
<p>Hello ' . $name . ',</p>
<p>You can make this out to be just like most any web page or design format you require using HTML and CSS.</p>
<p>Grill on the Rock </p>
<hr>
<p>To opt out of receiving this newsletter,  <a href="http://grillontherock.x10host.com/email/optout.php?e=' . $email . '">click here</a> and we will remove you from the listing immediately.</p>
</body>
</html>";

        $to = "$email";
        $subject = "Example Grill on the Rock Email";
        $from="info@grillontherock.com";

        $mail_result = mail($to, $subject, $mail_body, "From:".$from);

    }
    if($mail_result){
        echo "Email has been sent successfully";
    }

a bit new to php and html and I could not find similar problem at the moment.

Also, Is it possible to have email as html form and bring that html through send php file?

You need to set Content-Type to text/html in mail headers

Example headers with Content Type:

$headers = "From: danny@danny.domain
";
$headers .= "Reply-To: no-reply@danny.domain
";
$headers .= "MIME-Version: 1.0
";
$headers .= "Content-Type: text/html; charset=ISO-8859-1
";

then

$mail_result = mail($to, $subject, $mail_body, $headers);

@edit.

Also check exaple #4 at: http://php.net/manual/en/function.mail.php

With second html you are having problem with double quotes, because you are using double quotes inside the html, try to escape them. Try this:

or try the link below: What is the difference between single-quoted and double-quoted strings in PHP?

You need to set Content-Type to text/html in mail headers to send your mail as html mail.

Example headers:

$headers = "From: mymail@gmail.com
";
$headers .= "Reply-To: no-reply@mymail.com
";
$headers .= "MIME-Version: 1.0
";
$headers .= "Content-Type: text/html; charset=ISO-8859-1
";

finally after your content you need to send mail like the following.

$mail_result = mail($to, $subject, $mail_body, $headers);

Then for your double quotes problem : here you used double quotes inside double quotes. if that so you need to escape it with "/".