又快又脏，在搜索中把它放在get\\u header（）之前。php
<?php
// Get the query string
$query = get_search_query();
// if the first & last char is space, rip them
$query = trim($query);
// if there are more than one space, rip to one space
$query = preg_replace(\'/\\s\\s+/\', \' \',$query);
// if chars count is less than 3, redirect them to homepage
if (strlen($query)<3){
wp_redirect( home_url() );
exit;
}
?>
