[wp-trac] [WordPress Trac] #49652: Introduce new PHP cross-version compatibility functions, `str_contains()`

[WordPress Trac]

#49652: Introduce new PHP cross-version compatibility functions, `str_contains()`
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 Reporter:  knutsp           |      Owner:  (none)
     Type:  feature request  |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  General          |    Version:  5.3.2
 Severity:  minor            |   Keywords:  needs-patch needs-unit-tests
  Focuses:                   |
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 PHP 8.0 will introduce a new function, `str_contains()`. The function
 return true or false depending on the second parameter, `string $needle`,
 is found in the first parameter, `string $haystack`. The RFC can be found
 here https://wiki.php.net/rfc/str_contains

 {{{
 if ( ! function_exists( 'str_contains' ) ) {
     function str_contains( string $haystack, string $needle ): bool {
         return false !== strpos( $haystack, $needle );
     }
 }
 }}}
 Including a polyfill now will allow developers to take advantage of the
 new function and write consistent code regardless of a site's PHP version.

 Related: #45055

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Ticket URL: <https://core.trac.wordpress.org/ticket/49652>
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