rfc:debug_backtrace_depth
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| rfc:debug_backtrace_depth [2021/03/13 18:10] – tandre | rfc:debug_backtrace_depth [2021/06/02 02:05] (current) – tandre | ||
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| * Date: 2021-03-13 | * Date: 2021-03-13 | ||
| * Author: Tyson Andre, tandre@php.net | * Author: Tyson Andre, tandre@php.net | ||
| - | * Status: | + | * Status: |
| * First Published at: https:// | * First Published at: https:// | ||
| * Implementation: | * Implementation: | ||
| Line 110: | Line 110: | ||
| ===== Proposed PHP Version ===== | ===== Proposed PHP Version ===== | ||
| 8.1 | 8.1 | ||
| + | |||
| + | ===== Discussion ===== | ||
| + | |||
| + | ==== Limited to a specific use case ==== | ||
| + | |||
| + | https:// | ||
| + | |||
| + | < | ||
| + | There hasn't been much discussion on this one, probably because the | ||
| + | functionality and use cases are so specific. I'm not really convinced by | ||
| + | your examples. | ||
| + | |||
| + | For the purpose of printing debug logs, using an engine-provided depth is | ||
| + | non-ideal, because any intermediate helper functions will count towards the | ||
| + | depth. Tracking your own depth will result in a more meaningful/ | ||
| + | output. | ||
| + | |||
| + | For tracking down infinite recursion, isn't this what the xdebug recursion | ||
| + | limit is for? You'll directly get your recursive stack trace, which should | ||
| + | make it obvious where the infinite recursion occurs. Using | ||
| + | debug_backtrace_depth() for this purpose means that you actually already | ||
| + | need to know where you are infinitely recursing in order to place the guard. | ||
| + | |||
| + | If you want to find places where your code would hit the xdebug recursion | ||
| + | limit, then why not run it under xdebug and find out, rather than trying to | ||
| + | simulate the same behavior manually? That again requires that you actually | ||
| + | place relevant guards in the first place, which makes this another chicken | ||
| + | and egg problem. | ||
| + | </ | ||
| + | |||
| ===== Proposed Voting Choices ===== | ===== Proposed Voting Choices ===== | ||
| Yes/No, requiring a 2/3 majority | Yes/No, requiring a 2/3 majority | ||
rfc/debug_backtrace_depth.1615659017.txt.gz · Last modified: 2021/03/13 18:10 by tandre