[wp-trac] [WordPress Trac] #57345: Bump the minimum required PHP version to 7.2

[WordPress Trac]

#57345: Bump the minimum required PHP version to 7.2
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 Reporter:  SergeyBiryukov                       |       Owner:  (none)
     Type:  task (blessed)                       |      Status:  new
 Priority:  normal                               |   Milestone:  Future
                                                 |  Release
Component:  General                              |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-unit-tests 2nd-        |     Focuses:
  opinion                                        |
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Comment (by knutsp):

 Replying to [comment:70 spacedmonkey]:
 > @SergeyBiryukov PHP 5.6 is less than 5%. Could we bump in the min
 requirement to 7.0? Then do 7.2 later?

 Yes, no need to wait. PHP 7.0 came with
 * Significantly reduced memory usage
 * The null coalescing operator (??) (avoids a lot of `isset` checks and
 conditions just to safely have a default value. In WP especially useful
 when accessing possibly non existent, non required array keys.
 * Return and Scalar Type Declarations
 * etc.
 So we can start modernizing the code once a decision is made.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57345#comment:72>
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