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php二维数组合并与元素值相加实例
时间:2010-11-19 编辑:简简单单 来源:一聚教程网
php教程二维数组合并与元素值相加实例
*/
$arr_click = array(
array('date' => '2010-10-01', 'click' =>'1'),
array('date' => '2010-10-02', 'click' =>'2'),
array('date' => '2010-10-02', 'click' =>'3'),
array('date' => '2010-10-03', 'click' =>'4'),
);
$temp = array();
foreach ($arr_click as $k => $v)
{
$key = $v['date'];
$temp[$key] = isset($temp[$key]) ? $v['click'] + $temp[$key] : $v['click'];
}
foreach ($temp as $k => $v)
{
$result[] = array('date' => $k, 'click' => $v);
}
var_dump($result);
//方法二
$arr_click = array(
array( 'date' => '2010-10-01', 'click' =>'1' ),
array( 'date' => '2010-10-02', 'click' =>'2' ),
array( 'date' => '2010-10-02', 'click' =>'3' ),
array( 'date' => '2010-10-03', 'click' =>'4' ),
);
foreach($arr_click as $v)
if($r[$v['date']]) $r[$v['date']]['click'] += $v['click'];
else $r[$v['date']] = $v;
$arr_click = array_values($r);
print_r($arr_click);
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