多个记录到Google图表 [英] Multiple records to Google Charts
本文介绍了多个记录到Google图表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想在Google图表的帮助下通过SQL查询创建时间轴.我已使用以下代码创建了编码为json的数组.问题是,$ table仅包含此代码末尾的最后一条记录,但是我有1条以上的记录.
I would like to make a timeline from a SQL query with the help of Google Charts. I have used the following code to create the array, that encode to json. The problem is, that $table contains only the last record on the end of this code, but I have more than 1 record.
$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;
推荐答案
在循环中间清空要在其中收集结果的数组:
You empty the array in which you collect the results in the middle of the loop:
$rows = array();
将其移到外面.
免责声明:我没有检查其余的代码.
Disclaimer: I haven't checked the rest of the code.
注意:明智地使用var_dump
或print_r
可以快速向您显示问题出在哪里.
Note: judicious use of var_dump
or print_r
can quickly show you where the problem occours.
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