NGINX / PHP7.4-FPM 在未启用 error_reporting 的情况下抛出 502

NGINX / PHP7.4-FPM throws 502 without error_reporting enabled

提问人：Chris 提问时间：6/6/2020 最后编辑：Chris 更新时间：6/6/2020 访问量：370

问：

昨天我偶然发现了一个奇怪的问题。突然间，一个特定的PHP脚本不再起作用，它抛出了502错误。当我启用error_reporting时，仅显示通知/警告，但页面的其余部分正在正确呈现。当我再次禁用时，NGINX 再次抛出 502。error_reporting("E_ALL"); ini_set("display_errors", 1);

奇怪的是，当我用以下片段捕捉到通知/警告时：

function myErrorHandler($errno, $errstr, $errfile, $errline)
{
    if ($errno == E_USER_NOTICE){
    }
}

set_error_handler("myErrorHandler");

页面也正确呈现，显然没有显示错误。

Debian 版本：4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 （2018-05-07） x86_64

PHP版本：php7.4-fpm

NGINX 版本：nginx/1.10.3

这可能是内存问题吗？或者有其他人的另一种解释，为什么会这样？

该代码没有设置响应标头，因为我从未在某处设置任何标头。我也不使用错误处理程序，我只是在出现问题不起作用时激活error_reporting。如果一切正常，我会禁用display_errors，因此不会显示通知/警告。

如果我删除文件的以下行，它也可以在不捕获错误的情况下工作：$list = $tn->getMassnahmen();

$tn是我的类“teilnehmer”的一个实例：$tn = new teilnehmer;

'getMassnahmen'代码：

    function getMassnahmen()
    {
        $stmt = $this->db->prepare('SELECT * FROM `massnahmen_txt` ORDER BY `id` ASC');
        if ($stmt->execute()) {
            while ($row = $stmt->fetch()) {
                $result[] = $row;
            }
        }

        return $result;
    }

“Teilnehmer”是我的客户。客户端可以向其添加文件（不同的数据库表）。仅当客户端添加了文件时，才会以某种方式发生错误。如果我注释掉代码中有关文件的整个部分，则仍然会发生错误。只有删除线会有所帮助。但是这一行与文件没有任何关系。它们只使用相同的类。$list = $tn->getMassnahmen();

“teilnehmer”（$tn）的类/实例在代码中被多次使用，没有任何错误。

错误日志：

Notice:  Undefined variable: nocal in /PATH//html/inc/global.inc.php on line 34
Notice:  Undefined variable: result in /PATH//html/classes/user.php on line 672
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/inc/global.inc.php on line 57
Notice:  Undefined variable: newdates in /PATH//html/inc/global.inc.php on line 101
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/inc/global.inc.php on line 101
Notice:  Undefined variable: list in /PATH//html/inc/global.inc.php on line 113
Notice:  Undefined variable: is_index in /PATH//html/inc/global.inc.php on line 120
Notice:  Undefined variable: result in /PATH//html/classes/user.php on line 898
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/inc/global.inc.php on line 129
Notice:  Undefined variable: calendar in /PATH//html/inc/global.inc.php on line 133
Notice:  Undefined variable: result in /PATH//html/classes/user.php on line 898
Notice:  Undefined variable: result in /PATH//html/classes/mandanten.php on line 48
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/inc/global.inc.php on line 144
Notice:  Undefined variable: result in /PATH//html/classes/user.php on line 1425
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/inc/global.inc.php on line 190
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Warning:  array_walk() expects parameter 2 to be a valid callback, class 'user' does not have a method 'htmlspecialcharsArray' in /PATH//html/classes/user.php on line 224
Notice:  Undefined index: success in /PATH//html/teilnehmer_edit.php on line 17
Notice:  Undefined index: removedfile in /PATH//html/teilnehmer_edit.php on line 21
Notice:  Undefined index: successremovelog in /PATH//html/teilnehmer_edit.php on line 26
Notice:  Undefined index: fehltag_add in /PATH//html/teilnehmer_edit.php on line 65
Notice:  Undefined index: remove_fehltag in /PATH//html/teilnehmer_edit.php on line 142
Notice:  Undefined variable: content in /PATH//html/teilnehmer_edit.php on line 248
Notice:  Undefined variable: active_fehltage in /PATH//html/teilnehmer_edit.php on line 257
Notice:  Undefined variable: kursdata in /PATH//html/teilnehmer_edit.php on line 281
Notice:  Undefined variable: statusdata in /PATH//html/teilnehmer_edit.php on line 282
Notice:  Undefined variable: tabledata in /PATH//html/classes/template.php on line 134
Notice:  Undefined variable: result in /PATH//html/classes/teilnehmer.php on line 606
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/teilnehmer_edit.php on line 300
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/teilnehmer_edit.php on line 314
Notice:  Undefined variable: filelist in /PATH//html/teilnehmer_edit.php on line 387
Notice:  Undefined variable: fehlliste in /PATH//html/teilnehmer_edit.php on line 676
Notice:  Trying to access array offset on value of type bool in /PATH//html/teilnehmer_edit.php on line 699
Notice:  Undefined variable: aglist in /PATH//html/teilnehmer_edit.php on line 740
Notice:  Undefined index: name in /PATH//html/teilnehmer_edit.php on line 742
Notice:  Undefined index: name in /PATH//html/teilnehmer_edit.php on line 742
Notice:  Undefined variable: result in /PATH//html/classes/teilnehmer.php on line 684
Warning:  sizeof(): Parameter must be an array or an object that implements Countable in /PATH//html/teilnehmer_edit.php on line 752
Notice:  Undefined variable: list1 in /PATH//html/teilnehmer_edit.php on line 776
Notice:  Undefined variable: mlist in /PATH//html/teilnehmer_edit.php on line 796

提前感谢您的帮助！

php nginx 错误报告 fpm

评论

0赞 YouriKoeman 6/6/2020
我们需要更多的信息/代码来完全回答这个问题。它可能是您的默认错误处理程序，可能是代码中的某个响应标头设置为 503。请提供更多信息
0赞 Chris 6/6/2020
我已经编辑了我的主要帖子。 谢谢！
0赞 YouriKoeman 6/6/2020
最后一件事会很有帮助，当你用你的片段捕获错误时，你能打印它们吗？也许这些会有很好的信息。
0赞 Chris 6/6/2020
我已将错误日志添加到主帖子中。 此外，我还更正了错误代码。NGINX 抛出 502 而不是 503。
0赞 YouriKoeman 6/6/2020
我怀疑正在发生超时，您能否在 nginx 中设置并将超时配置为高值。set_time_limit(0)

答：

0赞 Chris 6/6/2020 #1

设置后

fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;

在我的 nginx 配置中，问题已解决。似乎 fastcgi 的缓冲区大小对于响应来说不够大。非常感谢您的帮助！

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