Sorts given $array by key $sortBy.
sortByKey( array $array string $sortBy string $order 'asc' integer $type SORT_NUMERIC )
array | & $array | $array Array to sort |
string | $sortBy | Sort by this key |
string | $order = 'asc' | Sort order asc/desc (ascending or descending). |
integer | $type = SORT_NUMERIC | Type of sorting to perform |
array|null
Sorted array, or null if not an array.
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http://api.cakephp.org/2.8/function-sortByKey.html