我有一个搜索功能,目前使用产品文本和所有内容搜索产品等。我希望它只搜索产品标题。我已经使用了这段代码,它已经工作多年了,但已经不复存在了。现在我收到一个错误。为什么呢?
在functions.php中使用的代码
<?php
// Search titles only
function __search_by_title_only( $search, &$wp_query )
{
global $wpdb;
if(empty($search)) {
return $search; // skip processing - no search term in query
}
$q = $wp_query->query_vars;
$n = !empty($q['exact']) ? '' : '%';
$search =
$searchand = '';
foreach ((array)$q['search_terms'] as $term) {
$term = esc_sql($wpdb->esc_like($term));
$search .= "{$searchand}($wpdb->posts.post_title LIKE '{$n}{$term}{$n}')";
$searchand = ' AND ';
}
if (!empty($search)) {
$search = " AND ({$search}) ";
if (!is_user_logged_in())
$search .= " AND ($wpdb->posts.post_password = '') ";
}
return $search;
}
add_filter('posts_search', '__search_by_title_only', 500, 2);
错误
警告:参数2到__search_by_title_only()应该是一个参考,在/customers/7/a/4/nemoko.dk/httpd.www/wp-includes/class-wp-hook.php中给出的值在线286
答案 0 :(得分:2)
posts_search
第二个参数以&amp; (&amp; $ wp_query )开头,这意味着它需要将参考变量作为参数。
WP_Query $this
过滤了&
个对象。只需删除参数
function __search_by_title_only( $search, $wp_query )
即可
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