isSubset() public static method (available since version 2.0.7)
Checks whether an array or Traversable is a subset of another array or Traversable.
This method will return true, if all elements of $needles are contained in $haystack. If at least one element is missing, false will be returned.
| public static boolean isSubset ( $needles, $haystack, $strict = false ) | ||
|---|---|---|
| $needles | array|Traversable |
The values that must all be in |
| $haystack | array|Traversable |
The set of value to search. |
| $strict | boolean |
Whether to enable strict ( |
| return | boolean |
|
| throws | yii\base\InvalidParamException |
if |
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