ArrayHelper

API reference › yii › helpers › ArrayHelper

class	`yii\helpers\ArrayHelper`
Extends	`BaseArrayHelper`
Since	2.0
Source	`framework/helpers/ArrayHelper.php`

ArrayHelper provides additional array functionality that you can use in your application.

For more details and usage information on ArrayHelper, see the guide article on array helpers.

Methods

Method	Description	Defined by
`filter()` static	Filters array according to rules specified.	`BaseArrayHelper`
`flatten()` static	Flattens a multidimensional array into a one-dimensional array.	`BaseArrayHelper`
`getColumn()` static	Returns the values of a specified column in an array.	`BaseArrayHelper`
`getValue()` static	Retrieves the value of an array element or object property with the given key or property name.	`BaseArrayHelper`
`htmlDecode()` static	Decodes HTML entities into the corresponding characters in an array of strings.	`BaseArrayHelper`
`htmlEncode()` static	Encodes special characters in an array of strings into HTML entities.	`BaseArrayHelper`
`index()` static	Indexes and/or groups the array according to a specified key.	`BaseArrayHelper`
`isAssociative()` static	Returns a value indicating whether the given array is an associative array.	`BaseArrayHelper`
`isIn()` static	Check whether an array or `Traversable` contains an element.	`BaseArrayHelper`
`isIndexed()` static	Returns a value indicating whether the given array is an indexed array.	`BaseArrayHelper`
`isSubset()` static	Checks whether an array or `Traversable` is a subset of another array or `Traversable`.	`BaseArrayHelper`
`isTraversable()` static	Checks whether a variable is an array or `Traversable`.	`BaseArrayHelper`
`keyExists()` static	Checks if the given array contains the specified key.	`BaseArrayHelper`
`map()` static	Builds a map (key-value pairs) from a multidimensional array or an array of objects.	`BaseArrayHelper`
`merge()` static	Merges two or more arrays into one recursively.	`BaseArrayHelper`
`multisort()` static	Sorts an array of objects or arrays (with the same structure) by one or several keys.	`BaseArrayHelper`
`recursiveSort()` static	Sorts array recursively.	`BaseArrayHelper`
`remove()` static	Removes an item from an array and returns the value. If the key does not exist in the array, the default value will be returned instead.	`BaseArrayHelper`
`removeValue()` static	Removes items with matching values from the array and returns the removed items.	`BaseArrayHelper`
`setValue()` static	Writes a value into an associative array at the key path specified.	`BaseArrayHelper`
`toArray()` static	Converts an object or an array of objects into an array.	`BaseArrayHelper`