大家好,我希望得到数组元素的总结。超出以下数组。 我希望最终的总和大小加起来。
Array
(
[105 - Screama & Merkury - Kiss Me (Ft. Farah).mp3] => Array
(
[name] => 105 - Screama & Merkury - Kiss Me (Ft. Farah).mp3
[time] => 1309246242
[size] => 5912295
[hash] => ae6c5dda2b75a4fcbd9f36394f744717
)
[106 - The Fives - It's What You Do (Ft. Vanya Taylor).mp3] => Array
(
[name] => 106 - The Fives - It's What You Do (Ft. Vanya Taylor).mp3
[time] => 1309246243
[size] => 6361223
[hash] => 8898827f715e88c7c667bcbc716086f6
)
[107 - Crazy Cousinz - Funky Anthem (Ft. MC Versatile).mp3] => Array
(
[name] => 107 - Crazy Cousinz - Funky Anthem (Ft. MC Versatile).mp3
[time] => 1309246243
[size] => 4841021
[hash] => dce7d5d3b781625f3e74eab58efc3779
)
[108 - Funky Dee - Are You Gonna Bang.mp3] => Array
(
[name] => 108 - Funky Dee - Are You Gonna Bang.mp3
[time] => 1309246243
[size] => 3766429
[hash] => 6605b648ead22ace8e5ce77e3c53801f
)
[109 - Mr M - Dash Down.mp3] => Array
(
[name] => 109 - Mr M - Dash Down.mp3
[time] => 1309246243
[size] => 4099700
[hash] => 1dcb8a77de83ec0315fc4431ff31f311
)
[110 - S-X - Woooo.mp3] => Array
(
[name] => 110 - S-X - Woooo.mp3
[time] => 1309246243
[size] => 3364615
[hash] => 5069b5956c99bcf468bc3fd00178cc22
)
[111 - Lil Silva - Different VIP.mp3] => Array
(
[name] => 111 - Lil Silva - Different VIP.mp3
[time] => 1309246244
[size] => 4019543
[hash] => 8b73799089a8a8e64cdff8436fa8c446
)
[crossdomain.xml] => Array
(
[name] => crossdomain.xml
[time] => 1309245738
[size] => 216
[hash] => 3cb3c78f77460e93c87faec3b50a8434
)
)
我想加上所有尺寸的键。我怎么能这样做我正在寻找一个使用array_sum,但现在不知道如何更改数组只显示大小键任何帮助请。
)
答案 0 :(得分:3)
$totalSize = 0;
foreach($yourarray as $file => $attr) {
$totalSize += (int) $attr['size'];
}
答案 1 :(得分:1)
PHP5.3解决方案
$totalSize = array_reduce($array, function ($currentTotalSize, $attr) {
return $currentTotalSize + $attr['size'];
}, 0);
或
$totalSize = array_sum(array_map(function ($attr) {
return $attr['size'];
}, $array));
第一个对于“foreach”循环或多或少是一个不同的符号,但应该稍微(可忽略不计?)更快,对于熟悉函数式编程的用户来说,这很容易理解。
第二个是“天真的方法”,首先提取所有条目的大小然后总结。