为什么程序在下载完所有电子邮件后无法停止？

Question

我的Gmail中有2465封电子邮件,为什么程序在下载完所有电子邮件后无法停止？所有code1和code2都在命令行模式下运行.
代码1:

<?php
$mailbox = array(
    'mailbox'  => '{imap.gmail.com:993/imap/ssl}INBOX',
    'username' => 'xxxx@gmail.com',
    'password' => 'yyyy'
);

$stream = imap_open($mailbox['mailbox'], $mailbox['username'], $mailbox['password'])
    or die('Cannot connect to mailbox: ' . imap_last_error());
$emails = imap_search($stream,"ALL");
$nums=imap_num_msg($stream);
echo $nums;
foreach($emails as $email_id) {

            $mime = imap_fetchbody($stream, $email_id, "");
            file_put_contents("/tmp/" . "email_{$email_id}.eml", $mime);
        }

imap_close($stream);
echo "over";
?>

对于code1:1
.可以下载所有电子邮件.
在控制台2.输出2465
3.no over在控制台上输出.
4.程序无法停止,它似乎永远运行.

码2:

<?php
$mailbox = array(
    'mailbox'  => '{imap.gmail.com:993/imap/ssl}INBOX',
    'username' => 'xxxx@gmail.com',
    'password' => 'yyyy'
);

$stream = imap_open($mailbox['mailbox'], $mailbox['username'], $mailbox['password'])
    or die('Cannot connect to mailbox: ' . imap_last_error());
$emails = imap_search($stream,"ALL");
$nums=imap_num_msg($stream);
echo $nums;
foreach($emails as $email_id) {
            echo  $email_id.PHP_EOL;
            $mime = imap_fetchbody($stream, $email_id, "");
            file_put_contents("/tmp/" . "email_{$email_id}.eml", $mime);
        }

imap_close($stream);
echo "over";
?>

对于code2:1
.可以下载所有电子邮件.
2.控制台上的输出2465.
3. over控制台上的输出.
4.程序在下载完所有电子邮件后停止.

echo $email_id.PHP_EOL; code2中有一行比code1多,其他代码相同.
所有code1和code2都在命令行模式下运行.
谁能解释一下？

Answer 1

检查imap_fetchbody()功能，此功能允许您设置下载限制，通过此功能您可以在所有邮件下载后停止。检查下面的代码，我对您的代码进行了一些更改，这些更改将在下载所有邮件后停止下载过程。请检查一次。

<?php
$mailbox = array(
    'mailbox'  => '{imap.gmail.com:993/imap/ssl}INBOX',
    'username' => 'xxxx@gmail.com',
    'password' => 'yyyy'
);

$stream = imap_open($mailbox['mailbox'], $mailbox['username'], $mailbox['password'])
    or die('Cannot connect to mailbox: ' . imap_last_error());

//Check all mails...
$imap_obj = imap_check($stream);

// Fetch an overview for all messages in INBOX...
$nums=imap_num_msg($stream);
$emails = imap_fetch_overview($stream,"1:{$imap_obj->Nmsgs}",0);

echo $nums;
//Loop until mail data...
foreach($emails as $objEmail_data) {
    $mime = imap_fetchbody($stream, $objEmail_data->msgno, "");
    file_put_contents("/tmp/" . "email_{$objEmail_data->msgno}.eml", $mime);
}

imap_close($stream);
echo "over";
?>

并查看结果！

我替换imap_search()为imap_fetch_overview()并做了一些相关的更改。

如果需要任何进一步的帮助，请告诉我。