Question

我需要循环每个$message收件人（收件人是array），如果出现问题，unset相应的收件人：

$recipients = &$message->getRecipients(); // array

// Do this now as arrays is going to be altered in the loop
$count = count($recipients);         

for($i = 0; $i <= $count; $i++):

    $response = $messageManager->send($recipients[$i], $content);

    // If not 200 OK remove the recipient from the message
    if($response->getStatusCode !== 200) unset($recipients[$i]); 

endfor;

但PHP不允许我这样做，因为“只能通过引用分配变量”。除了重新分配数组之外，我能做些什么吗？

$recipients = $message->getRecipients();

// Loop

$message->setRecipients($recipients);

编辑：无法使用foreach并通过引用传递当前元素：

$recipients = array('a', 'b', 'c');

foreach($recipients as &$recipient)
    unset($recipient);

echo count($recipients); // 3

Answer 1

您可以这样做：

$recipients = $message->getRecipients();      

foreach($recipients as $key => $recipient) :

    $response = $messageManager->send($recipient, $content);
    if($response->getStatusCode !== 200) unset($recipients[$key]); 

endforeach;

$message->setRecipients($recipients);

通过引用分配PHP中的方法调用返回的数组？

1 个答案: