[wp-trac] [WordPress Trac] #58943: Replace `is_a` calls in core with `instanceof`

[WordPress Trac]

#58943: Replace `is_a` calls in core with `instanceof`
------------------------------+--------------------------------------------
 Reporter:  ayeshrajans       |       Owner:  SergeyBiryukov
     Type:  enhancement       |      Status:  closed
 Priority:  normal            |   Milestone:  6.4
Component:  General           |     Version:
 Severity:  trivial           |  Resolution:  fixed
 Keywords:  has-patch commit  |     Focuses:  performance, coding-standards
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Changes (by SergeyBiryukov):

 * status:  accepted => closed
 * resolution:   => fixed


Comment:

 In [changeset:"56352" 56352]:
 {{{
 #!CommitTicketReference repository="" revision="56352"
 Coding Standards: Use `instanceof` keyword instead of the `is_a()`
 function.

 This is a micro-optimization that removes a few unnecessary function
 calls.

 Follow-up to [31188], [34369], [38986], [41159], [43211], [43230],
 [44606], [45757].

 Props ayeshrajans, jrf, rajinsharwar, costdev, mukesh27, SergeyBiryukov.
 Fixes #58943.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/58943#comment:15>
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