我正在尝试使用is\\u search从函数中输出一些内容。php。我在实际搜索页面本身上使用is\\U搜索，效果很好：

if(is_search()) {
   echo get_search_query( \'<h1>\', \'</h1>\' );
} 

但从功能上来说。php这不起作用：

function data_scroll_all(){
   if(is_search()) {
     $offset = $_POST[\'offset\'];
     $category = $_POST[\'cat\'];
     $args = array(\'posts_per_page\' => 3, \'category__not_in\' => 1, \'offset\' => $offset, \'orderby\' => \'date\', \'cat\' => $category);
     $loop = new WP_Query($args);
       if($loop->have_posts()) {
       while($loop->have_posts()){
       $loop->the_post(); 
       get_template_part( \'content-archive\' );
       }
    } wp_reset_postdata();
 } else {
    echo "Nope!";
   }
die(\'\');

}

有了这个，我只会说“不！”当我在搜索页面上时。

我的搜索模板设置如下：

<?php
/*
Template Name: Search Page
*/
?>
<?php
global $query_string;

$query_args = explode("&", $query_string);
$search_query = array();

foreach($query_args as $key => $string) {
    $query_split = explode("=", $string);
    $search_query[$query_split[0]] = urldecode($query_split[1]);
} // foreach

$search = new WP_Query($search_query);
?>

我有一个航路点“无限滚动”功能，到达页面底部时触发：

var ajax_url = $(\'.loadAll\').attr(\'data-url\');
var cat = $(\'.loadAll\').attr(\'data-cat\');
var offset = -3;
$(\'#infinite-load\').waypoint(function (direction) {
    if (direction === \'down\') {
        offset = parseInt(offset) + 3;
        $.ajax({
            dataType: "HTML",
            url: ajax_url,
            type: \'POST\',
            data: {
                action: \'data_scroll_all\',
                cat: cat,
                offset: offset
            },
            beforeSend: function () {
                $(".loading").show(); //show image loading
            },
            success: function (data) {
                $(".loading").hide();
                $(\'#infinite-load\').append(data);
                $.waypoints(\'refresh\');
            }
        });
    }
}, {
    offset: \'bottom-in-view\'
});