这是我的多维数据集。阵列：
Array
(
[0] => Array
(
[id] => 1
[language] => English
)
[1] => Array
(
[id] => 1
[language] => English
)
[2] => Array
(
[id] => 1
[language] => English
)
[3] => Array
(
[id] => 1
[language] => English
)
[4] => Array
(
[id] => 1
[language] => English
)
[5] => Array
(
[id] => 1
[language] => English
)
[6] => Array
(
[id] => 1
[language] => English
)
[7] => Array
(
[id] => 1
[language] => English
)
[8] => Array
(
[id] => 1
[language] => English
)
[9] => Array
(
[id] => 1
[language] => English
)
[10] => Array
(
[id] => 1
[language] => English
)
[11] => Array
(
[id] => 1
[language] => English
)
[12] => Array
(
[id] => 1
[language] => English
)
[13] => Array
(
[id] => 1
[language] => English
)
[14] => Array
(
[id] => 1
[language] => English
)
[15] => Array
(
[id] => 1
[language] => English
)
[16] => Array
(
[id] => 1
[language] => English
)
[17] => Array
(
[id] => 1
[language] => English
)
[18] => Array
(
[id] => 1
[language] => English
)
[19] => Array
(
[id] => 1
[language] => English
)
[20] => Array
(
[id] => 1
[language] => English
)
[21] => Array
(
[id] => 1
[language] => English
)
[22] => Array
(
[id] => 1
[language] => English
)
[23] => Array
(
[id] => 1
[language] => English
)
[24] => Array
(
[id] => 2
[language] => Italian
)
[25] => Array
(
[id] => 1
[language] => German
)
[26] => Array
(
[id] => 1
[language] => German
)
[27] => Array
(
[id] => 1
[language] => German
)
[28] => Array
(
[id] => 1
[language] => German
)
[29] => Array
(
[id] => 1
[language] => German
)
[30] => Array
(
[id] => 1
[language] => German
)
[31] => Array
(
[id] => 1
[language] => German
)
[32] => Array
(
[id] => 1
[language] => German
)
[33] => Array
(
[id] => 1
[language] => German
)
[34] => Array
(
[id] => 1
[language] => German
)
[35] => Array
(
[id] => 1
[language] => German
)
[36] => Array
(
[id] => 1
[language] => German
)
)
我知道如何在数组中循环以及如何计算值，但这次我还需要检查[id]是否在一个使用多种语言的数组中，并且它必须完全动态地用于不同的查询。
新阵列应如下所示：
Array (
[1] => Array(
"English" => 24,
"German" => 12
),
[2] => Array(
"Italian" => 1
)
)
$sorted_array = array("English" => 0, "German" => 0);
foreach($old_array as $a) {
if(isset($a['language']) && strlen($a['language']) >= 1) {
switch($a['language']) {
case 'English' :
$sorted_array['English']++;
break;
case 'German' :
$sorted_array['German']++;
break;
}
}
}
只是为了让你继续。。。如果你真的很聪明，你可以使用array_keys为你自动填充sorted_array（）。。。（谷歌）