[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:  5.1
Component:  Bootstrap/Load                       |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch needs-testing servehappy   |     Focuses:  multisite
  needs-dev-note                                 |
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Changes (by flixos90):

 * keywords:  has-patch needs-unit-tests needs-testing servehappy needs-dev-
     note => has-patch needs-testing servehappy needs-dev-note


Comment:

 [attachment:"44458.12.diff"] introduces a `WP_Shutdown_Handler` class that
 represents the shutdown handler. Its `handle()` method is the only public
 method and is used as the callback for `register_shutdown_function()`.

 Relying a class like this makes it easier to provide a custom
 implementation via the new `shutdown-handler.php` drop-in. Since the
 distinct steps the default handler performs are separate methods, you can
 easily reuse what you like while overriding the parts you want to change.

 The patch also hardens the logic a bit further, for example covering the
 case where the Translation APIs have not been loaded yet. It also prevents
 an error where the default error template would use invalid HTML markup.

 As usual, you can get a better overview of this change in particular on
 GitHub, via https://github.com/wp-core-php/wordpress-
 develop/pull/3/commits/851cfe7001cf64636cab04d5a23f4fb12a3e1fee.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44458#comment:52>
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