PHP与MySQL创建数据透视表 - 在左侧添加列

Question

我想在左表添加列，其COMPONENT2：

function print_table_commodity_location_count_inbd_pivot(){ 
    $query_items = "SELECT `tbl_origin_dest`.`name` AS 'Location', 
        `tbl_component`.`component_name` AS 'Component', 
        COUNT(`tbl_entry_item`.`entry_item_id`) AS 'Comp_Count',Component2, 
      FROM tbl_entry 
       LEFT JOIN tbl_entry_item ON `tbl_entry`.`entry_id`=`tbl_entry_item`.`entry_id` 
       LEFT JOIN tbl_customer ON `tbl_entry`.`customer_id`=`tbl_customer`.`customer_id` 
       LEFT JOIN tbl_serv_prov ON `tbl_entry`.`serv_prov_id`=`tbl_serv_prov`.`serv_prov_id` 
       LEFT JOIN tbl_origin_dest ON `tbl_entry`.`location`=`tbl_origin_dest`.`id` 
       LEFT JOIN tbl_project ON `tbl_entry`.`project_id`=`tbl_project`.`project_id` 
       LEFT JOIN tbl_component ON `tbl_entry_item`.`component_id`=`tbl_component`.`component_id` 
      WHERE `tbl_entry`.`in_out_type`='I' AND `outbound_entry_id` IS NULL AND `outbound_entry_item_id` IS NULL 
      GROUP BY `tbl_origin_dest`.`name`, 
        `tbl_component`.`component_name`";     

    $result_items=mysql_query($query_items); 
     $locationArray = array(); 
     $components = array() 
     echo '<table style=\"background-color: silver;\" border=\"1\" cellpadding=\"1\" cellspacing=\"1\"> 
       <tbody><tr><td></td>'; 
     $locations = array(); 
       while($row = mysql_fetch_assoc($result_items)){ 
     //create an array with all the locations 
     if(!in_array($row['Location'], $locations){ 
     $locations[] = $row['Location']; 
     } 
     //create an array for every component and the count at a location 
     $components[$row['Component']][$row['Location']] = $row['Comp_count']; 


     } 
      //create the first row columnns (header) 
      foreach($locations as $location){ 
      echo '<td>'.$location.'</td>' 
      } 
      echo '</tr>'; 
      foreach($components as $component => $componentLocations){ 
       echo '<tr><td>'.$component.'</td>'; 
       foreach($locations as $loc){ 
        //if there is no component at this location 
       if(!array_key_exists($loc, $componentLocations)){ 
       echo '<td>0</td>'; 
       }else{ 
       echo '<td>'.$componentLocations[$loc].'</td>'; 
       } 
       } 
      echo .'</tr>'; 
      } 
    echo '</tbody></table>'; 

Answer 1

我认为你必须在SQL脚本错误。请让我知道它抛出哪个错误消息以供进一步调查。我更新你的脚本，你可以试试它。你想在'Component2'中显示哪些数据？

function print_table_commodity_location_count_inbd_pivot(){ 
$query_items = "SELECT `tbl_origin_dest`.`name` AS 'Location', 
       `tbl_component`.`component_name` AS 'Component', 
       COUNT(`tbl_entry_item`.`entry_item_id`) AS 'Comp_Count' 
     FROM tbl_entry 
      LEFT JOIN tbl_entry_item ON `tbl_entry`.`entry_id`=`tbl_entry_item`.`entry_id` 
      LEFT JOIN tbl_customer ON `tbl_entry`.`customer_id`=`tbl_customer`.`customer_id` 
      LEFT JOIN tbl_serv_prov ON `tbl_entry`.`serv_prov_id`=`tbl_serv_prov`.`serv_prov_id` 
      LEFT JOIN tbl_origin_dest ON `tbl_entry`.`location`=`tbl_origin_dest`.`id` 
      LEFT JOIN tbl_project ON `tbl_entry`.`project_id`=`tbl_project`.`project_id` 
      LEFT JOIN tbl_component ON `tbl_entry_item`.`component_id`=`tbl_component`.`component_id` 
     WHERE `tbl_entry`.`in_out_type`='I' AND `outbound_entry_id` IS NULL AND `outbound_entry_item_id` IS NULL 
     GROUP BY `tbl_origin_dest`.`name`, 
       `tbl_component`.`component_name`";     

$result_items=mysql_query($query_items); 
    $locationArray = array(); 
    $components = array() 
    echo '<table style=\"background-color: silver;\" border=\"1\" cellpadding=\"1\" cellspacing=\"1\"> 
      <tbody><tr><td></td>'; 
    $locations = array(); 
      while($row = mysql_fetch_assoc($result_items)){ 
    //create an array with all the locations 
    if(!in_array($row['Location'], $locations){ 
    $locations[] = $row['Location']; 
    } 
    //create an array for every component and the count at a location 
    $components[$row['Component']][$row['Location']] = $row['Comp_count']; 


    } 
     //create the first row columnns (header) 
     foreach($locations as $location){ 
     echo '<td>'.$location.'</td>' 
     } 
     echo '</tr>'; 
     foreach($components as $component => $componentLocations){ 
      echo '<tr><td>'.$component.'</td>'; 
      foreach($locations as $loc){ 
       //if there is no component at this location 
      if(!array_key_exists($loc, $componentLocations)){ 
      echo '<td>0</td>'; 
      }else{ 
      echo '<td>'.$componentLocations[$loc].'</td>'; 
      } 
      } 
     echo .'</tr>'; 
     } 
echo '</tbody></table>';