Small example of removing duplicates from php arrays

Small example of removing duplicates from php arrays

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' => 'Wang Wu '), Array ('id' => 125, 'name' => 'Zhao Liu '), Array ('id' => 126, 'name' => 'Zhao Liu ') ); $ Key = 'name '; Assoc_unique (& $ aa, $ key ); Print_r ($ aa ); ?> Articles you may be interested in: php: how to create an array: Introduction to php: how to use array_unique to determine whether the same value exists in the array. a small example of php array and loop. php: how to find a specific value in a multi-dimensional array. enhanced array_unique function (two-dimensional array supported) php multi-dimensional array sorting example of php multi-dimensional array sorting php array callback filter function array_filter () application instance php extract the function of variable from the array and application instance to the php code of multi-dimensional array sorted by a certain value randomly extract some elements from the array php code