deduplication software

Php two-dimensional array deduplicationMethod 1: Dimensionality Reduction and deduplication If (! $ IsPidArrKey) {// Dimensionality Reduction deduplication $ temp = array (); foreach ($ tmp as $ k = >$ v) {$ v = implode (',', $ v); $ temp [] = $ v;} $ temp = array_unique ($ temp); foreach ($ temp as $ k => $ v) {$ temp [$ k] = explode (",", $ v) ;}$ tmp = $ temp ;} Method 2: remove duplicates using the thir

This example describes how to merge multiple array deduplication algorithms implemented by JS. We will share this with you for your reference. The details are as follows:? 1234567891011121314 var arr1 = ['a','b'];var arr2 = ['a','c','d'];var arr3 = [1,'d',undefined,true,null];// Merge two arrays to remove duplicatesvar concat_ = function(arr1,arr2){// Do not directly use var arr = arr1. In this way, arr is only a reference of arr1, and mod

Js array deduplication method summary, js array Summary Three methods Use indexOf to determine the new array Similar indexOf is actually used in underscore. js. // Input the Array function unique1 (arr) {var tmpArr = []; for (var I = 0; I Use indexOf to determine the old Array Function unique2 (arr) {var tmpArr = []; // result array for (var I = 0; I Search by hash The implementation of JS objects is the feature of hash tables. Function unique3 (arr

Copy codeThe Code is as follows:/** Array element deduplication*/If (typeof Array. prototype. distinct! = "Function "){Array. prototype. distinct = function (){This. sort ();For (var I = 0; I If ($. isPlainObject (this [I]) $. isPlainObject (this [I + 1]) {If (o2o (this [I], this [I + 1]) {This. splice (I, 1 );}} Else if ($. isArray (this [I]) $. isArray (this [I + 1]) {If (a2a (this [I], this [I + 1]) {This. splice (I, 1 );}} Else if (this [I] ===

This article mainly introduces php bubble sorting, fast sorting, fast searching, and two-dimensional array deduplication instance sharing. For more information, see the next section. The code is as follows: // Bubble sort Function bubble_sort ($ array) { $ Count = count ($ array ); If ($ count Return false; } For ($ I = 0; $ I For ($ j = 0; $ j If ($ array [$ j]> $ array [$ j + 1]) { $ Temp = $ array [$ j]; $ Array [$ j] = $ array [$ j + 1]; $ Array

Small example of array deduplication in php for beginners The code is as follows: Function assoc_unique ($ arr, $ key ){ $ Tmp_arr = array (); Foreach ($ arr as $ k =>$ v ){ If (in_array ($ v [$ key], $ tmp_arr )){ Unset ($ arr [$ k]); } Else { $ Tmp_arr [] = $ v [$ key]; } } Sort ($ arr ); Return $ arr; } $ Aa = array ( Array ('id' => 123, 'name' => 'Zhang San '), Array ('id' => 123, 'name' => 'Lily '), Array ('id' => 124, 'name

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This article mainly introduces php array deduplication instances and analysis. For more information, see. Repeated items in one-dimensional array: Use the array_unique function. use the following example: The code is as follows: $ Aa = array ("apple", "banana", "pear", "apple", "wail", "watermalon ");$ Bb = array_unique ($ aa );Print_r ($ bb );?>The result is as follows: Array ([0] => apple [1] => banana [2] => pear [4] => wail [5] => watermalon ).

There are two arrays with the same length. how can we keep them consistent after deduplication. For example $ T1 = Array ([0] => Nanchang [1] => Nanchang [2] => Ganzhou [3] => Jiujiang [4] => Ganzhou [5] => jiujiang) $ T2 = Array ([0] => 17:48:33 [1] => 12:48:42 [2] => 17:48:23 [3] => 08:40:03 [4] => 10:28:22 [5] => 11:28:13) Currently, both $ t1 and $ t2 are of the same length. They also have a corresponding relationship. That is t1 [0] and t2 [0].