[wp-trac] [WordPress Trac] #44458: Catch WSODs and provide a means for recovery for end users

[WordPress Trac]

#44458: Catch WSODs and provide a means for recovery for end users
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 Reporter:  schlessera                           |       Owner:  (none)
     Type:  task (blessed)                       |      Status:  new
 Priority:  normal                               |   Milestone:  5.0
Component:  Bootstrap/Load                       |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch needs-unit-tests needs-    |     Focuses:  multisite
  testing                                        |
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Comment (by schlessera):

 I made a more thorough examination of the potential errors we can catch:

 https://www.notion.so/brightnucleus/WP-Sandbox-
 88738b62e9e947a7aeb8271d958a5497

 As a conclusion, here's what I think we should try to catch:

 {{{
 E_ERROR             => register_shutdown_function()
 E_PARSE             => register_shutdown_function()
 E_RECOVERABLE_ERROR => set_error_handler() (turn into E_ERROR ?)
 Exception           => try/catch
 Error               => try/catch (PHP7+)
 }}}

 The error handler for `E_RECOVERABLE_ERROR` and the `try/catch` block for
 the exceptions can just turn them into an `E_ERROR` so that the shutdown
 handler can take over. This allows us to guide everything through one
 singular funnel.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44458#comment:22>
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