[wp-trac] [WordPress Trac] #44445: wp_cache_init() and WP_Object_Cache constructor has a memory leak

[WordPress Trac]

#44445: wp_cache_init() and WP_Object_Cache constructor has a memory leak
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 Reporter:  MikeSchinkel  |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Cache API     |    Version:  4.9.6
 Severity:  normal        |   Keywords:
  Focuses:                |
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 When calling `wp_cache_init()` repeated in unit testing the
 WP_Object_Cache::__contruct() repeatedly registers '__destruct' as a
 shutdown function, and each time it does it leaks memory.

 There is a @todo comment above the `register_shutdown_hook()` that says
 the following so I would assume that this is no longer needed and we could
 just delete the line with the register_shutdown_hook()?

  ''This should be moved to the PHP4 style constructor, PHP5 already calls
 __destruct()''

 I will upload a patch to delete the list, and a different patch to only
 call `register_shutdown_hook()` once, depending on what is appropriate.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44445>
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