如何在字符串中包含href鏈接？

Question

以下是與發送郵件相關的PHP代碼，除非鏈接不顯示，否則此代碼運行良好。它像一個正常的文本。此外，還會在代碼中顯示中斷標籤。我認爲錯誤是在消息字符串中。我可以知道如何解決這個問題。

if(isset($_POST['submit'])){ 
    $from = "#"; // sender 
    $to=$email; 
    $subject="Email verification"; 
    $message='Hi, <br/> <br/> We need to make sure you are human. Please verify your email and get started using your Website account. <br/> <br/> <a href="'.$base_url.'activation/'.$activation.'">'.$base_url.'activation/'.$activation.'</a>'; 

    $message = wordwrap($message,50); 
    mail($to,$subject,$message,"From: $from\n"); 

Answer 1

您發送的電子郵件爲純文本，而不是HTML。因此，HTML只顯示並不呈現。

$from = "#"; // sender 
$to  = $email; 
$subject = "Email verification"; 
$message = 'Hi, <br/> <br/> We need to make sure you are human. Please verify your email and get started using your Website account. <br/> <br/> <a href="'.$base_url.'activation/'.$activation.'">'.$base_url.'activation/'.$activation.'</a>'; 
$msg  = wordwrap($message,50); 
$headers = "From: " . $from . "\r\n"; 
$headers .= "Reply-To: ". $from . "\r\n"; 
$headers .= "MIME-Version: 1.0\r\n"; 
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n"; 

mail($to,$subject,$message,$headers);