$totalCount = $this->db->query($endSql)->row_array()['count']; //分页查询数据 $limitAry = deal_page_limit_offset($params, 1); $querySql = "select {$this->fields} "." from ({$subSql}) as t " ." order by {$this->orderByField} {$this->orderBy} {$limitAry['limit_offs...
PHP5中,可以这样了: $this->db->select('name, email')->from('users')-> where('id', 5)->limit(10, 20); $query = $this->db->get(); 这实际上效果是: SELECT name, email FROM `users` WHERE `id` = 5 LIMIT 10, 20 10 使用database forge类进行操作数据库类 $this->load->dbforge...
}functionuser_del($id){$this->db->where('uid',$id);$this->db->delete('user'); }functionuser_select($id){$this->db->where('uid',$id);$this->db->select('*');$query=$this->db->get('user');return$query->result(); } } 控制器 classUserextendsCI_Controller {functioninsert()...
'.' . trim($column); } /** * 设置 查询 生成器 * * @return $this */ protected function setQueryBuilder(array $columns = ['*'], $limit = NULL, $offset = NULL) { // 软应用 $this->softApply(); // 列(字段) $this->getDatabaseRead()->select( $this->withSelect($columns)-...
我试图在Codeigniter的查询构建器中重写现有的数据库查询,我如何解决存在的位置(我认为这就是问题所在)?这是我想重写的原始查询: $query = $this->db->query('SELECT p_customer.*' . ' FROM p_customer' .->where('p_ 浏览16提问于2019-01-29得票数0 ...
$this->db->select('product_name, quantity, price, subtotal'); $this->db->from('order_details'); $query = $this->db->get(); return $query->result_array(); } 2.调用多个选择查询方法 在控制器中调用多个选择查询的方法,如: public function view_orders_by_status($status) ...
$query = $this->db->query("SELECT * FROM users LIMIT 1;"); $row = $query->row(0, 'User'); echo $row->name; // access attributes echo $row->reverse_name(); // or methods defined on the 'User' class row_array() 与上述相同row()方法,但它返回一个数组。例子: ...
publicfunctionsimple_query($sql) {if( !$this->conn_id) {$this->initialize(); }if($this->is_single_instance){//不读写分离return$this->_execute($sql); }else{//读写分离if(preg_match("/^\s*select/",strtolower($sql))) {return$this->_execute($sql); ...
The second parameter enables you to set whether or not the query builder query will be reset (by default it will be reset, just like when using $this->db->get()):echo $this->db->limit(10,20)->get_compiled_select('mytable', FALSE); // Prints string: SELECT * FROM mytable LIMIT...
这一节我们看下CI提供给我们的输入类和输出类,通过研究这两个类的源码学习下表单数据处理,安全过滤(xss-跨站脚本,csrf-跨站请求伪造),网页缓存,输出控制以及http相关的一些知识。 输入类 CI_Input 先从构造方法开始 看下构造方法做了哪些初始化 publicfunction__construct(){/* ...