[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+
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 Reporter:  flixos90                         |       Owner:  flixos90
     Type:  enhancement                      |      Status:  closed
 Priority:  normal                           |   Milestone:  6.4
Component:  Themes                           |     Version:
 Severity:  normal                           |  Resolution:  fixed
 Keywords:  has-patch commit needs-dev-note  |     Focuses:  performance
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Changes (by spacedmonkey):

 * keywords:  has-patch commit => has-patch commit needs-dev-note


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Ticket URL: <https://core.trac.wordpress.org/ticket/57067#comment:18>
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