hashProvider The IHashCodeProvider that will supply the hash codes for all keys in the new instance. Parameters capacity A Int32 containing the initial number of entries that the NameValueCollection can contain.
#Get values of icollections code
NameValueCollection(int,, ) Constructor public NameValueCollection(int capacity, IHashCodeProvider hashProvider, IComparer comparer) Ĭonstructs and initializes new instance of the NameValueCollectionĬlass with the specified initial capacity, hash code provider, NameValueCollection.Item(System.String) Property NameValueCollection.IsSynchronized Property NameValueCollection.InvalidateCachedArrays Method NameValueCollection.GetValues(int) Method NameValueCollection.GetValues(System.String) Method NameValueCollection.Get(System.String) Method
NameValueCollection.Add(System.String, System.String) Method The comparer determines whether two keys are equal.Īttributes DefaultMemberAttribute("Item") See Also Namespace Members The hash code provider dispenses hash codes for keys in the NameValueCollection. The capacity is automatically increased as required. The capacity is the number of key-and-value pairs that the NameValueCollection can contain. Multiple values for a particular key are contained in a single Each key in the collection is associated with one or more This class can be used for headers, query strings andįorm data. Represents a collection of associated String keys and String This type implements ICollection and IEnumerable. 4 $collection = new Collection () 7 8 // Get all unique .NameValueCollection Class Class public class NameValueCollection: ICollection, IEnumerable The following example is similar to the first example in this section, but will effectively perform a case-insensitive uniqueness check: 1 use Illuminate \ Support \ Collection 2 3 // Create a new collection instance. The callback function should return the value the unique method uses to determine uniqueness. The argument will be the item from the collection. The provided $key can also be a callback function that accepts one argument.
12 $uniqueItems = $collection -> unique ( 'name' ) 13 14Īfter the above code has finished executing the $uniqueItems variable will be an instance of Collection and will have a value similar to the following output: 1 object (Illuminate\Support\Collection) 2 protected 'items' => 3 array 4 0 => 5 array 6 'id' => int 5 7 'name' => string 'Jane' 8 'sex' => string 'female' 9 1 => 10 array 11 'id' => int 6 12 'name' => string 'Bill' 13 'sex' => string 'male' 14 2 => 15 array 16 'id' => int 7 17 'name' => string 'Sarah' 18 'sex' => string 'female' 19 4 $collection = new Collection (, 6, 7, 8 9 ]) 10 11 // Get all unique items.
#Get values of icollections how to
The following code sample demonstrates how to use the unique method to get all the unique items in a collection based on a given property of the collection's items (in this example it is the name of hypothetical users): 1 use Illuminate \ Support \ Collection 2 3 // Create a new collection instance. 1 object (Illuminate\Support\Collection) 2 protected 'items' => 3 array 4 0 => string 'a' 5 1 => string 'A' 6 2 => string 'b' 7 3 => string 'c' 8 4 => int 1 9 6 => int 2 10 7 => int 3 11 12 It should be noted that the unique method is case sensitive. 9 $uniqueItems = $collection -> unique () 10 11Īfter the above code executes, the $uniqueItems variable will be an instance of Collection and will have a value similar to the following output. 4 $collection = new Collection () 7 8 // Get all unique items. The following code example shows the basic usage of the unique method: 1 use Illuminate \ Support \ Collection 2 3 // Create a new collection instance.
Signature 1 public function unique ( 2 $key = null, 3 $strict = false 4 ) 5 Example Use The unique method returns a new instance of Collection with the items it determined to be unique. It accepts an optional $key argument which can be used to further restrict which items are returned. The unique method can be used to get all the unique items in the collection.
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