[wp-trac] [WordPress Trac] #58220: Replace usage of substr with str_starts_with and str_ends_with

[WordPress Trac]

#58220: Replace usage of substr with str_starts_with and str_ends_with
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 Reporter:  Soean             |       Owner:  SergeyBiryukov
     Type:  enhancement       |      Status:  assigned
 Priority:  normal            |   Milestone:  6.3
Component:  General           |     Version:
 Severity:  normal            |  Resolution:
 Keywords:  has-patch commit  |     Focuses:  performance
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Comment (by spacedmonkey):

 Performance testing:

 Run on PHP 7.4 - 2020 theme and theme test data imported, trunk vs PR.
 Runned 500 times

 || || Trunk || PR ||
 || Response Time (median)|| 85.6|| 84.93 ||
 || wp-before-template (median)|| 20.81|| 20.68 ||
 || wp-before-template-db-queries (median}|| 2.99|| 2.97 ||
 || wp-template (median)|| 55.52|| 55.22 ||
 || wp-total (median)|| 76.42|| 75.98 ||
 || wp-template-db-queries (median)|| 5.83|| 5.77 ||

 Blackfire profiles show a similar story.
 https://blackfire.io/profiles/compare/73d894ed-7057-44aa-840e-
 eed31d7a5085/graph


 This change is a net benefit. @azaozz

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Ticket URL: <https://core.trac.wordpress.org/ticket/58220#comment:17>
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