General: Backport polyfills for `str_ends_with()` and `str_starts_with()`.

Merges [52040], [56016], and [56015] to 4.9 branch.

Props ocean90, SergeyBiryukov, desrosj, joemcgill, jorbin, mukesh27.

Built from https://develop.svn.wordpress.org/branches/4.9@57455


git-svn-id: http://core.svn.wordpress.org/branches/4.9@56956 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Aaron Jorbin 2024-01-30 18:11:26 +00:00
parent baa6ded055
commit 129516e7df
1 changed files with 46 additions and 0 deletions

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@ -537,3 +537,49 @@ if ( ! function_exists( 'is_iterable' ) ) {
return ( is_array( $var ) || $var instanceof Traversable );
}
}
if ( ! function_exists( 'str_starts_with' ) ) {
/**
* Polyfill for `str_starts_with()` function added in PHP 8.0.
*
* Performs a case-sensitive check indicating if
* the haystack begins with needle.
*
* @since 5.9.0
*
* @param string $haystack The string to search in.
* @param string $needle The substring to search for in the `$haystack`.
* @return bool True if `$haystack` starts with `$needle`, otherwise false.
*/
function str_starts_with( $haystack, $needle ) {
if ( '' === $needle ) {
return true;
}
return 0 === strpos( $haystack, $needle );
}
}
if ( ! function_exists( 'str_ends_with' ) ) {
/**
* Polyfill for `str_ends_with()` function added in PHP 8.0.
*
* Performs a case-sensitive check indicating if
* the haystack ends with needle.
*
* @since 5.9.0
*
* @param string $haystack The string to search in.
* @param string $needle The substring to search for in the `$haystack`.
* @return bool True if `$haystack` ends with `$needle`, otherwise false.
*/
function str_ends_with( $haystack, $needle ) {
if ( '' === $haystack ) {
return '' === $needle;
}
$len = strlen( $needle );
return substr( $haystack, -$len, $len ) === $needle;
}
}