[wp-trac] [WordPress Trac] #47430: wp-db: Always adds a filter on every query

[WordPress Trac]

#47430: wp-db: Always adds a filter on every query
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 Reporter:  withinboredom  |      Owner:  (none)
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Database       |    Version:  5.2.1
 Severity:  minor          |   Keywords:  has-patch
  Focuses:                 |
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 It appears that in the function `placeholder_escape` it adds a filter
 `remove_placeholder_escape`. It adds a filter with the priority of `0`.
 However, `has_filter` doesn't return `true` or `false`, it returns the
 priority. Since the priority is 0, it always adds a filter on every call.
 This issue is minor because WP_Hook prevents the infinite loop that would
 occur, however, it still causes a small amount of memory to be used and
 causes a small performance penalty.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47430>
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