How can I save a PHP backtrace to the error log?
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27-10-2019 - |
Question
I'm using this right now:
error_log(serialize(debug_backtrace()));
But I have to unserialize it every time. Is there a better way to store backtraces?
Solution
This should generate a readable string:
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:
ob_start();
debug_print_backtrace();
error_log(ob_get_clean());
OTHER TIPS
$log = var_export(debug_backtrace(), true);
Then use the variable $log
to log in file or what ever.
From my perspective the best approach is using an exception functionality:
$e = new Exception();
$e->getTraceAsString();
A little ugly but workable, I do this:
error_log('Identifying string so that it doesn\'t just end up as gibberish' . json_encode(debug_backtrace()));
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:
$content = unserialize(serialize(debug_backtrace()));
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