多个表选择的空白页

Question

拥有这些查询，但在运行时会给我空白页面。也许是因为$ query-＆gt;结果函数对“他”不好？ （这是ExpressionEngine）

$query = $DB->query("SELECT fr.uri AS smth, ch.uri 
                       FROM exp_static_page_caching_uris AS fr,              
                            exp_static_page_caching_queue AS ch 
                      WHERE fr.uri != ch.uri");         

foreach($query->result as $row) {      
  $DB->query($DB->insert_string('exp_static_page_caching_queue',
                                 array('site_id'   => '1',
                                'uri'              => $row['smth']),
                                TRUE));
}

Answer 1

尝试使用$query->result_array()代替$query->result