如何更改wordpress搜索栏中的搜索操作?

有 这 添加到上的SQL WHERE子句 wp-includes/class-wp-query.php:1306 :

<?php
// wp-includes/class-wp-query.php:~1306

foreach ( $q['search_terms'] as $term ) {
    //...
    $like = $n . $wpdb->esc_like( $term ) . $n;
    $search .= $wpdb->prepare( "{$searchand}(({$wpdb->posts}.post_title $like_op %s) $andor_op ({$wpdb->posts}.post_excerpt $like_op %s) $andor_op ({$wpdb->posts}.post_content $like_op %s))", $like, $like, $like );
    // ...

因此,我会钩入 pre_get_posts ,并以显式形式提供查询的单词” search_terms LIKE 就像你说的,我们在找的!

所以,我们可以这样做:

<?php
// functions.php

function fuzzify_query(\WP_Query $q) {
    if (true === $q->is_search()
        && true === property_exists($q, 'query')
        && true === key_exists('s', $q->query)
    ) {
        $original_query = $q->query['s'];
        $words          = explode(' ', $original_query);
        $fuzzy_words    = array_map(
            function($word) {
                return '%'.$word.'%';
            },
            $words
        );

        $q->query_vars['search_terms'] = $fuzzy_words;

        return $q;
    }

    return $q;
}

 add_action('pre_get_posts', 'fuzzify_query', 100); // Or whatever priority your fuzziness requires!