The array_unique function will do this for you. You just needed to add the SORT_REGULAR flag: $items_thread = array_unique($items_thread, SORT_REGULAR); However, as bren suggests, you should do this in SQL if possible.
If you have duplicates in your table and you use ALTER TABLE mytable ADD UNIQUE INDEX myindex (A, B, C, D); the query will fail with Error 1062 (duplicate key). But if you use IGNORE — (only works before MySQL 5.7.4) ALTER IGNORE TABLE mytable ADD UNIQUE INDEX myindex (A, B, C, D); the duplicates … Read more
>>> a = range(10) >>> [val for val in a for _ in (0, 1)] [0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9] N.B. _ is traditionally used as a placeholder variable name where you do not want to do anything with the … Read more
$array = array ( 0 => ‘9,12’, 1 => ‘5,6,10,13,7,8,14’, 2 => ’13’, 3 => ”, 4 => ”, 5 => ’14’, 6 => ’15’ ); // turn strings into arrays with explode $array = array_map( function( $item ) { return explode( ‘,’, $item ); }, $array ); // merge all arrays $array = call_user_func_array( … Read more
Try this: Create: app/code/local/MagePal/EnableDuplicateProductStatus/etc/config.xml <?xml version=”1.0″?> <config> <modules> <MagePal_EnableDuplicateProductStatus> <version>1.0.1</version> </MagePal_EnableDuplicateProductStatus> </modules> <global> <models> <enableduplicateproductstatus> <class>MagePal_EnableDuplicateProductStatus_Model</class> </enableduplicateproductstatus> </models> <events> <catalog_model_product_duplicate> <observers> <enableduplicateproductstatus> <type>singleton</type> <class>enableduplicateproductstatus/observer</class> <method>productDuplicate</method> </enableduplicateproductstatus> </observers> </catalog_model_product_duplicate> </events> </global> </config> Create: app/code/local/MagePal/EnableDuplicateProductStatus/Model/Observer.php class MagePal_EnableDuplicateProductStatus_Model_Observer { /** * Prepare product for duplicate action. * * @param Varien_Event_Observer $observer * @return object */ public function productDuplicate(Varien_Event_Observer … Read more
We can also now clean things up using filter method: function removeDuplicateCharacters(string) { return string .split(”) .filter(function(item, pos, self) { return self.indexOf(item) == pos; }) .join(”); } console.log(removeDuplicateCharacters(‘baraban’)); Working example:
Here is an Array extension to return the unique list of objects based on a given key: extension Array { func unique<T:Hashable>(map: ((Element) -> (T))) -> [Element] { var set = Set<T>() //the unique list kept in a Set for fast retrieval var arrayOrdered = [Element]() //keeping the unique list of elements but ordered for … Read more
Since you can’t use LINQ, you can do this with collections and loops instead: static void Main(string[] args) { int[] array = { 10, 5, 10, 2, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 12, 12 }; var dict = new Dictionary<int, int>(); foreach(var value in array) { // When the key … Read more
You could have a single key that has a value of an array(aka a multi-dimensional array), which would contain all the elements with that given key. An example might be $countries = array( “United States” => array(“California”, “Texas”), “Canada” => array(“Ontario”, “Quebec”) );
Your code would need to iterate over all elements. If you want to make sure that there are no duplicates simple method like public static <T> boolean areAllUnique(List<T> list){ Set<T> set = new HashSet<>(); for (T t: list){ if (!set.add(t)) return false; } return true; } would be more efficient since it can give you … Read more