helpers\BaseArrayHelper isSubset()

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`.
$haystack	array\|Traversable	The set of value to search.
$strict	boolean	Whether to enable strict (`===`) comparison.
return	boolean	`true` if `$needles` is a subset of `$haystack`, `false` otherwise.
throws	yii\base\InvalidParamException	if `$haystack` or `$needles` is neither traversable nor an array.

Links:

http://www.yiiframework.com/doc-2.0/yii-helpers-basearrayhelper.html#isSubset()-detail

doc_Yii

2016-10-30 17:04:27

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