[wp-trac] [WordPress Trac] #57067: Replace certain `array_key_exists()` calls with `isset()` once PHP requirement is raised to 7.0+

[WordPress Trac]

#57067: Replace certain `array_key_exists()` calls with `isset()` once PHP
requirement is raised to 7.0+
-------------------------+-----------------------------
 Reporter:  flixos90     |       Owner:  (none)
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Future Release
Component:  General      |     Version:
 Severity:  normal       |  Resolution:
 Keywords:  needs-patch  |     Focuses:  performance
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Changes (by johnbillion):

 * milestone:  6.3 => Future Release


Comment:

 Let's bump it for now, it's not a critical change. I'm waiting to hear the
 final decision about the minimum PHP version bump.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57067#comment:10>
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