[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:  flixos90
     Type:  task (blessed)                     |      Status:  reopened
 Priority:  normal                             |   Milestone:  5.2
Component:  Bootstrap/Load                     |     Version:
 Severity:  normal                             |  Resolution:
 Keywords:  has-dev-note has-patch servehappy  |     Focuses:  multisite
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Comment (by flixos90):

 In [changeset:"44962" 44962]:
 {{{
 #!CommitTicketReference repository="" revision="44962"
 Bootstrap/Load: Introduce fatal error handler.

 This changeset introduces a `WP_Fatal_Error_Handler` class that detects
 fatal errors and displays a more user-friendly message about the site
 experiencing technical difficulties.

 Websites that have custom requirements in that regard can implement their
 own fatal error handler by adding a `fatal-error-handler.php` drop-in that
 returns the handler instance to use, which must be based on a class that
 inherits `WP_Fatal_Error_Handler`. That handler will then be used in place
 of the default one. Alternatively, the fatal error handler feature can be
 completely disable through a constant `WP_DISABLE_FATAL_ERROR_HANDLER`.

 Websites that would like to modify specifically the error template
 displayed in the frontend can add a `php-error.php` drop-in that works
 similarly to the existing `db-error.php` drop-in. For more granular
 customization, the fatal error handler also includes new filters
 `wp_should_handle_php_error`, `wp_php_error_message` and
 `wp_php_error_args`.

 Props afragen, bradleyt, flixos90, ocean90, schlessera, SergeyBiryukov,
 spacedmonkey, timothyblynjacobs.
 See #46130, #44458.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/44458#comment:80>
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