是否可以在 PHP 的 Mail 函数中添加 CSS？

Question

我想在Mail函数中添加一些css到这段代码中：

$text .= "<h1>Confirmation Code</h1>";
$text .= "<img src='https://pbs.twimg.com/profile_images/587949417577066499/3uCD4xxY_400x400.jpg'></img>";
$text .= "<h3>This is your confirmation code. Enter it into the text box in World Web. Here is the code: '".$_REQUEST['random_num']."'</h3>";
$text .= "<h4>Thank you for working with WWW. We appreciate the help!</h4>";
$text .= "</body></html>";
$subject = "Confirmation Code";
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";
$to = $_REQUEST['email'];
mail($to, $subject, $text, $headers);

但是当我添加：

style="color: red;"

或者：

style="background-color: blue;"

它出错了。有人知道我如何在 php 中将 css 添加到邮件功能吗？

Answer 1

因为您没有转义 " 内的 "

尝试：

$text .= "<h1 style='color:red;'>Confirmation Code</h1>";
//or
$text .= "<h1 style=\"color:red;\">Confirmation Code</h1>";