php - 将多数组从模型传递到 Controller

Question

我有一个带有数组 $added_tabs 的 Controller 。我将此数组传递给函数模型。在我的模型中，如果我打印结果，一切正常，但如果我再次将 $row 返回到我的 Controller ，则只显示 1 条记录。

有什么想法吗？

在我的 Controller 中我有这个:

$this->load->model('check_info/check_post_day');
$admin_post_day = $this->check_post_day->check_post($added_tabs);
echo "<pre>"; print_r($admin_post_day); echo "</pre>";

在我的模型中我有这个:

class Check_post_day extends CI_Model {

function check_post($data) { 
    foreach ($data as $info) {
        $row = array(); 
            $query = $this->db->query("
            SELECT

            admin_post_day.page_id,
            admin_post_day.admin_id,
            admin_post_day.hour_post,
            admin_post_day.discount,
            admin_post_day.url,
            admin_post_day.message_post,
            admin_post_day.voucher,
            admin_post_day.date_saved,

            fb_pages.page_id,
            fb_pages.id_fb_pages,

            fb_pages_admin.access_token

            FROM admin_post_day

            inner join fb_pages
            on admin_post_day.page_id=fb_pages.page_id

            inner join fb_pages_admin
            on fb_pages.id_fb_pages=fb_pages_admin.id_fb_pages

            where admin_post_day.page_id LIKE " . $info['page_id'] . "
            ORDER BY admin_post_day.date_saved DESC LIMIT 1
            ");
    foreach ($query->result_array() as $row) {
    $info = $row;
    }
        if ( !empty( $query ) ) {
            return $row;
        } else {
            return false;
        }
    }
}
}

//更新

class Check_post_day extends CI_Model {

function check_post($data) { 
    foreach ($data as $info) {
        $row = array(); 
            $query = $this->db->query("
            SELECT

            admin_post_day.page_id,
            admin_post_day.admin_id,
            admin_post_day.hour_post,
            admin_post_day.discount,
            admin_post_day.url,
            admin_post_day.message_post,
            admin_post_day.voucher,
            admin_post_day.date_saved,

            fb_pages.page_id,
            fb_pages.id_fb_pages,

            fb_pages_admin.access_token

            FROM admin_post_day

            inner join fb_pages
            on admin_post_day.page_id=fb_pages.page_id

            inner join fb_pages_admin
            on fb_pages.id_fb_pages=fb_pages_admin.id_fb_pages

            where admin_post_day.page_id LIKE " . $info['page_id'] . "
            ORDER BY admin_post_day.date_saved DESC LIMIT 1
            ");

    if($query->num_rows() > 0){
        $rows[] = $query->result_array();
    }
}
return $rows;
}
 }

Answer 1

当然，您在循环中使用了 return，所以在第一次运行后立即返回输出。

改变:

if ( !empty( $query ) ) {
    return $row;
} else {
    return false;
}

收件人:

if ( !empty( $query ) ) {
    $rows[] = $row;
}

循环结束后:

if ( count($rows) > 0 ) {
    return $rows;
} else {
    return false;
}

更新请注意，使用第二个循环是在浪费资源。在我看来，这是一种不好的做法。

   foreach ($query->result_array() as $row) {
    $info = $row;
    }

考虑添加 result_array 函数的输出并改为处理它。

根据@RocketHazmat 的评论，

empty($query) doesn't do what you think it does.

您应该将条件更改为:

if( count($row) > 0)

更新 2而不是第二个循环和条件:

if($query->num_rows() > 0){
    $rows[] = $query->result_array();
}

请注意，如果 result_array 返回一个数组，$rows 将是一个多维数组。