私は次のような配列を持っています:
$resellers = Array
(
[40] => Array
(
[state] => AB
[city] => Calgary
)
[185] => Array
(
[state] => AB
[city] => Calgary
)
[141] => Array
(
[state] => AB
[city] => Calgary
)
[41] => Array
(
[state] => AB
[city] => Grande Prairie
)
[68] => Array
(
[state] => BC
[city] => Burnaby
)
[51] => Array
(
[state] => BC
[city] => Campbell River
)
[61] => Array
(
[state] => BC
[city] => Kamloops
)
)
「Alberta」(4) と BC (3) の値の数を簡単に数えられる方法はないかと考えていました。