谷歌图表的多条记录

Question

我想在 Google Charts 的帮助下从 SQL 查询中创建一个时间线。我使用以下代码创建了编码为 json 的数组。问题是，$table 只包含这段代码末尾的最后一条记录，但我有不止一条记录。

$rows = array();
$table = array();

$table['cols'] = array( 
  array('id' => '', 'label' => 'Name', 'pattern' => '', 'type' => 'string'), 
  array('id' => '', 'label' => 'Start', 'pattern' => '', 'type' => 'date'), 
  array('id' => '', 'label' => 'End', 'pattern' => '', 'type' => 'date') ); 
while($r = mysql_fetch_assoc($results)) { 
  $name=$r['Name']; $date=$r['Date'];
  $start=$r['start']; 
  $end=$r['end']; 
  $year=date("Y", strtotime($date)); 
  $month=date("m", strtotime($date)); 
  $day=date("d", strtotime($date));
  $start_h=date("H", strtotime($start));
  $start_min=date("i", strtotime($start));
  $start_sec=date("s", strtotime($start)); 
  $end_h=date("H", strtotime($end));
  $end_min=date("i", strtotime($end)); 
  $end_sec=date("s", strtotime($end));
  $start_merged = "Date(".$year.",".$month.",".$day.",".$start_h.",".$start_min.",".$start_sec.")";
  $end_merged = "Date(".$year.",".$month.",".$day.",".$end_h.",".$end_min.",".$end_sec.")";
  $rows = array(); 
  $temp = array(); 
  $temp[] = array('v' => (string) $name); 
  $temp[] = array('v' => (string) $start_merged); 
  $temp[] = array('v' => (string) $end_merged);
  $rows[] = array('c' => $temp);
}
$table['rows'] = $rows;

Answer 1

在循环中间清空收集结果的数组：

$rows = array();

把它移到外面。

免责声明：我没有检查其余代码。

注意：明智地使用var_dump 或print_r 可以快速告诉您问题所在。