[英]Count occurrences in PHP Array
我在玩opencart,并尝试在购物车的过滤器功能中添加一些新功能。
我想知道如何有效地计算多维php数组中给定值的出现次数? 例如,如果所有Filter-> Count == 0,我正在尝试工作?
Array
(
...
[filter] => Array
(
[0] => Array
(
[filter_id] => 109
[name] => Boyfriends (0)
[count] => 0
)
[1] => Array
(
[filter_id] => 114
[name] => Daughters (0)
[count] => 0
)
[2] => Array
(
[filter_id] => 115
[name] => Fathers (0)
[count] => 0
)
[3] => Array
(
[filter_id] => 108
[name] => For Her (53)
[count] => 53
)
...
)
...
)
$amount = 0;
foreach($array as $value) {
if($value['count'] == 0)
$amount++;
}
这将返回等于零的“计数”数量。 要返回不为0的金额,请使用以下代码:
$amount = 0;
foreach($array as $value) {
if($value['count'] != 0)
$amount++;
}
然后,如果所有“计数”值均为零,则$amount
等于零。
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