array_unique multidimensional php code example

Example 1: array_unique multidimensional php

<?php
    function super_unique($array,$key)
    {
       $temp_array = [];
       foreach ($array as &$v) {
           if (!isset($temp_array[$v[$key]]))
           $temp_array[$v[$key]] =& $v;
       }
       $array = array_values($temp_array);
       return $array;

    }


$arr="";
$arr[0]['id']=0;
$arr[0]['titel']="ABC";
$arr[1]['id']=1;
$arr[1]['titel']="DEF";
$arr[2]['id']=2;
$arr[2]['titel']="ABC";
$arr[3]['id']=3;
$arr[3]['titel']="XYZ";

echo "<pre>";
print_r($arr);
echo "unique*********************<br/>";
print_r(super_unique($arr,'titel'));

?>

Example 2: get unique array from multidimentional array by value in php

$uniquePids = array_unique(array_map(function ($i) { return $i['pid']; }, $holder));

Example 3: Array_unique multidimensional PHP

Array
(
    [0] => Array
        (
            [id] => 1
            [value] => 111
        )
 
    [1] => Array
        (
            [id] => 2
            [value] => 222
        )
 
    [2] => Array
        (
            [id] => 3
            [value] => 333
        )
 
    [3] => Array
        (
            [id] => 1
            [value] => 111
        )
 
)