打破无尽的循环（包含phpmailer）

Question

我不小心换了一行：

$timenow = $timenow + 1; 

到

//$timenow = $timenow + 1;

所以我做了一个无休止的循环。

为什么我的额外安全性（break功能）不起作用？ 我一直收到邮件。当我在while循环中放置echo "1";时，它会在100秒后停止。但是当我将phpmailer置于循环中时，while并没有停止。

我的代码：

<?php
      $times = 20;
      $timenow = 0;
      $startTime = time();
      $timeout = 100;   //timeout in seconds
      while($timenow < $times){
         if(time() > $startTime + $timeout) {
             break;
         }
            //Create a new PHPMailer instance
            $mail = new PHPMailer;
            //Set who the message is to be sent from
            $mail->setFrom('noreply@offertes-krijgen.nl', 'noreply');
            //Set an alternative reply-to address
            $mail->addReplyTo('noreply@offertes-krijgen.nl', 'noreply');
            //Set who the message is to be sent to
            $mail->addAddress($somevar, $somevar2);
            //Set the subject line
            $mail->Subject = 'subject';
            //Read an HTML message body from an external file, convert referenced images to embedded,
            //convert HTML into a basic plain-text alternative body
            $mail->msgHTML(file_get_contents('contents.html'), dirname(__FILE__));
            //Replace the plain text body with one created manually
            $mail->AltBody = 'This is the mail';
            //Attach an image file
            $mail->addAttachment('');
            $mail->AddEmbeddedImage('images/phpmailer_mini.png', 'logo');

            //send the message, check for errors
            if (!$mail->send()) {
                $mailerror = 1;
            }
       $timenow = $timenow + 1;
        }
?>

感谢您的帮助