如何将 PHP 回溯保存到错误日志？
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How can I save a PHP backtrace to the error log?
提问by Leo Jiang
I'm using this right now:
我现在正在使用这个：
error_log(serialize(debug_backtrace()));
But I have to unserialize it every time. Is there a better way to store backtraces?
但我每次都必须反序列化它。有没有更好的方法来存储回溯？
回答by álvaro González
This should generate a readable string:
这应该生成一个可读的字符串：
error_log(print_r(debug_backtrace(), true));
Additionally, debug_print_backtrace()prints the back trace as string and its output can be captured with regular output buffer functions:
此外，debug_print_backtrace()将回溯打印为字符串，并且可以使用常规输出缓冲区函数捕获其输出：
ob_start();
debug_print_backtrace();
error_log(ob_get_clean());
回答by Igor Sydorenko
From my perspective the best approach is using an exception functionality:
从我的角度来看，最好的方法是使用异常功能：
$e = new Exception();
$e->getTraceAsString();
回答by Pramendra Gupta
$log = var_export(debug_backtrace(), true);
Then use the variable $logto log in file or what ever.
然后使用该变量$log登录文件或其他任何内容。
回答by Kzqai
A little ugly but workable, I do this:
有点丑但可行，我这样做：
error_log('Identifying string so that it doesn\'t just end up as gibberish' . json_encode(debug_backtrace()));
回答by Robert Sinclair
The following can either be written to a .txt file or you can also access it's contents (like $content[0]) as opposed to var_export which is a bit trickier I find:
以下内容可以写入 .txt 文件，也可以访问它的内容（如 $content[0]），而不是 var_export，我发现它有点棘手：
$content = unserialize(serialize(debug_backtrace()));
