方法一：用thinkphp的语法去写

public function select_endProduceinfo(){$like_info = input('post.like_info', '');$page = input('post.page', 1);$pageSize = input('post.pageSize', 10);$start = ($page - 1) * $pageSize;$username = input('post.username','');$search_line1 = input('post.search_line1','');$search_line2 = input('post.search_line2','');$search_line3 = input('post.search_line3','');$search_line4 = input('post.search_line4','');$employee_num = db::table('fa_account_info')->where(['username' => $username])->value('employee_num');//全部数据信息  $data['info'] = db::table('wip_transactions')->alias('d') // 设置wip_jobs_all的别名->join(['wip_jobs_all' => 'a'], 'd.wip_entity_name = a.wip_entity_name')->join(['sf_item_no' => 'c'], 'a.primary_item = c.item_no')->join(['hr_employees' => 'e'], 'e.employee_num = d.employee_num')->field('d.*, c.item_no as item_no, c.item_name as item_name, c.units as uom, e.employee_name as employee_name')->where(['d.employee_num' => $employee_num])->where(['d.wip_entity_name'=>['like','%'.$like_info.'%']]);// 添加查询条件if (!empty($search_line1)) {$data['info']->where('d.wip_entity_name', 'LIKE', "%$search_line1%");}if (!empty($search_line2)) {$data['info']->where('d.operation_code', 'LIKE', "%$search_line2%");}if (!empty($search_line3)) {$data['info']->where('item_no', 'LIKE', "%$search_line3%");}if (!empty($search_line4)) {$data['info']->where('item_name', 'LIKE', "%$search_line4%");}$data['info'] = $data['info']->order(['transaction_date' => 'desc'])->limit($start, $pageSize)->select();
//求出数据总数$data['total'] =  db::table('wip_transactions')->alias('d') // 设置wip_jobs_all的别名->join(['wip_jobs_all' => 'a'], 'd.wip_entity_name = a.wip_entity_name')->join(['sf_item_no' => 'c'], 'a.primary_item = c.item_no')->join(['hr_employees' => 'e'], 'e.employee_num = d.employee_num')->field('d.*, c.item_no as item_no, c.item_name as item_name, c.units as uom, e.employee_name as employee_name')->where(['d.employee_num' => $employee_num])->where(['d.wip_entity_name'=>['like','%'.$like_info.'%']]);  // 添加查询条件if (!empty($search_line1)) {$data['info']->where('d.wip_entity_name', 'LIKE', "%$search_line1%");}if (!empty($search_line2)) {$data['info']->where('d.operation_code', 'LIKE', "%$search_line2%");}if (!empty($search_line3)) {$data['info']->where('item_no', 'LIKE', "%$search_line3%");}if (!empty($search_line4)) {$data['info']->where('item_name', 'LIKE', "%$search_line4%");}         $data['total'] = $data['total']->order(['transaction_date' => 'desc'])->count();//处理数据for ($i = 0; $i < count($data['info']); $i++) {//计算时差$data['info'][$i]['hours_diff'] = number_format(($data['info'][$i]['end_date'] - $data['info'][$i]['begin_date']) / 3600, 4);if ($data['info'][$i]['transaction_type'] != '良品') {$data['info'][$i]['hours_diff'] = '';}//处理时间$data['info'][$i]['transaction_date'] = date('Y-m-d', $data['info'][$i]['transaction_date']);$data['info'][$i]['begin_date'] = date('Y-m-d H:i:s', $data['info'][$i]['begin_date']);$data['info'][$i]['end_date'] = date('Y-m-d H:i:s', $data['info'][$i]['end_date']);if (!$data['info'][$i]['transaction_quantity']) {$data['info'][$i]['transaction_quantity'] = 0;}}echo json_encode($data);
}

方法二：嵌套mysql的语法

public function select_POorder_deatil(){$page = input('post.page', 1);$pageSize = input('post.pageSize', 10);$start = ($page - 1) * $pageSize;$order_number = input('post.order_number','');//头信息$header_info = "SELECT  pha.po_num, pha.status,order_type, pha.note,pha.payment_term ,pha.order_date,pha.app_remark, pha.creation_date, pha.tax_amount,pha.tax_flag,pha.all_line_amount, pha.created_by, pha.youhui_amount, vendor_name,pha.po_all_amount,pha.vendor_code,pha.payment_type,pha.tax_name FROM    po_headers_all pha, vendors vWHERE   v.vendor_code = pha.vendor_codeAND     po_num= '" .$order_number."'";$data['header_info'] =  Db::query($header_info);//处理日期for($i=0;$i<count($data['header_info']);$i++){$data['header_info'][$i]['creation_date'] = date('Y-m-d H:i:s', $data['header_info'][$i]['creation_date']);$data['header_info'][$i]['order_date'] = date('Y-m-d', $data['header_info'][$i]['order_date']);}//行信息$line_info = "SELECT  a.line,a.stockid,b.item_desc,b.item_name,a.uom,a.price,a.quantity,a.po_num,a.line_amount,a.last_update_date,a.creation_date,ifnull(quantity_received,0) quantity_received,ifnull(quantity_accepted,0) quantity_accepted,ifnull(quantity_deliveried,0) quantity_deliveried,ifnull(quantity_cancelled,0) quantity_cancelled,ifnull(quantity_rejected,0) quantity_rejected,ifnull(quantity_billed,0) quantity_billed,a.created_by,(select locationname from locations d where d.loccode=a.subinventory_code) locationname,a.need_dateFROM    po_lines_all a,sf_item_no bwhere   a.stockid=b.item_no   and     po_num = '" .$order_number."' ";$line_info .="  ORDER BY a.line ASCLIMIT $start, $pageSize ";    $data['line_info'] =  Db::query($line_info);//处理日期for($i=0;$i<count($data['line_info']);$i++){$data['line_info'][$i]['creation_date'] = date('Y-m-d H:i:s', $data['line_info'][$i]['creation_date']);}//行总数$line_count = "SELECT COUNT(*) AS countFROM (SELECT  a.line,a.stockid,b.item_desc,b.item_name,a.uom,a.price,a.quantity,a.po_num,a.line_amount,a.last_update_date,a.creation_date,ifnull(quantity_received,0) quantity_received,ifnull(quantity_accepted,0) quantity_accepted,ifnull(quantity_deliveried,0) quantity_deliveried,ifnull(quantity_cancelled,0) quantity_cancelled,ifnull(quantity_rejected,0) quantity_rejected,ifnull(quantity_billed,0) quantity_billed,a.created_by,(select locationname from locations d where d.loccode=a.subinventory_code) locationname,a.need_dateFROM    po_lines_all a,sf_item_no bwhere   a.stockid=b.item_no   and     po_num = '" .$order_number."' ) AS subquery;";$result = Db::query($line_count);$data['line_info_total'] = isset($result[0]['count']) ? $result[0]['count'] : 0;    echo json_encode($data);
}