Cannot redeclare writelog() (previously declared in D:\wwwroot\shujiemeicom_8uaj86\web\home_gate.php:218)

function writelog($uid,$username,$description,$status)
{
    $data['admin_id'] = $uid;
    $data['admin_name'] = $username;
    $data['description'] = $description;
    $data['status'] = $status;
    $data['ip'] = request()->ip();
    $data['add_time'] = time();
    $log = db('Log')->insert($data);
}

//字符串截取
function str_replace_limit($search, $replace, $subject, $limit=-1) { 
    if (is_array($search)) { 
        foreach ($search as $k=>$v) { 
            $search[$k] = '`' . preg_quote($search[$k],'`') . '`'; 
        }
    }else { 
        $search = '`' . preg_quote($search,'`') . '`';