Ticket #44296: 44296_1.patch

src/wp-includes/class-wp-query.php

@@ -1308 +1308 @@
                 }
                 // there are no line breaks in <input /> fields
                 $q['s']                  = str_replace( array( "\r", "\n" ), '', $q['s'] );
+                // replace double-width space to half-width.
+                $q['s']                  = mb_convert_kana($q['s'], 's');
                 $q['search_terms_count'] = 1;
                 if ( ! empty( $q['sentence'] ) ) {
                         $q['search_terms'] = array( $q['s'] );

tests/phpunit/tests/query/search.php

@@ -60 +60 @@
                 $this->assertEquals( array( 'search', 'term' ), $query->get( 'search_terms' ) );
         }
 
+        /**
+         * Check if double-width space will be recognized as a separator
+         */
+        function test_filter_stopwords_including_double_width_space() {
+                $terms = 'This　is　a　search　term';
+                add_filter( 'wp_search_stopwords', array( $this, 'filter_wp_search_stopwords' ) );
+                $query = new WP_Query( array( 's' => $terms ) );
+                remove_filter( 'wp_search_stopwords', array( $this, 'filter_wp_search_stopwords' ) );
+
+                $this->assertNotEquals( explode( ' ', $terms ), $query->get( 'search_terms' ) );
+                $this->assertEquals( 5, $query->get( 'search_terms_count') );
+                $this->assertEquals( array( 'This', 'is', 'search', 'term' ), $query->get( 'search_terms' ) );
+        }
+
         function test_filter_stopwords() {
                 $terms = 'This is a search term';
                 add_filter( 'wp_search_stopwords', array( $this, 'filter_wp_search_stopwords' ) );