Code Modernization: Use str_starts_with() and str_ends_with() in a few more places.

`str_starts_with()` and `str_ends_with()` were introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins or ends with the given substring (needle).

WordPress core includes a polyfill for these functions on PHP < 8.0 as of WordPress 5.9.

Follow-up to [55990], [56014], [56019].

See #58220.

git-svn-id: https://develop.svn.wordpress.org/trunk@56020 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp-http-cookie.php

@@ -203,7 +203,7 @@ class WP_Http_Cookie {
 
 		// Host - very basic check that the request URL ends with the domain restriction (minus leading dot).
 		$domain = ( str_starts_with( $domain, '.' ) ) ? substr( $domain, 1 ) : $domain;
-		if ( substr( $url['host'], -strlen( $domain ) ) !== $domain ) {
+		if ( ! str_ends_with( $url['host'], $domain ) ) {
 			return false;
 		}
 
@@ -213,7 +213,7 @@ class WP_Http_Cookie {
 		}
 
 		// Path - request path must start with path restriction.
-		if ( substr( $url['path'], 0, strlen( $path ) ) !== $path ) {
+		if ( ! str_starts_with( $url['path'], $path ) ) {
 			return false;
 		}
 

src/wp-includes/deprecated.php

@@ -980,7 +980,7 @@ function get_links($category = -1, $before = '', $after = '<br />', $between = '
 		$title = $desc;
 
 		if ( $show_updated )
-			if (substr($row->link_updated_f, 0, 2) !== '00')
+			if ( !str_starts_with($row->link_updated_f, '00') )
 				$title .= ' ('.__('Last updated') . ' ' . gmdate(get_option('links_updated_date_format'), $row->link_updated_f + (get_option('gmt_offset') * HOUR_IN_SECONDS)) . ')';
 
 		if ( '' != $title )

src/wp-includes/kses.php

@@ -799,7 +799,7 @@ function wp_kses_one_attr( $attr, $element ) {
 			$quote = $value[0];
 		}
 		if ( '"' === $quote || "'" === $quote ) {
-			if ( substr( $value, -1 ) !== $quote ) {
+			if ( ! str_ends_with( $value, $quote ) ) {
 				return '';
 			}
 			$value = substr( $value, 1, -1 );