We can use array_unique()
for remove duplicate entry from a single multidimensional array in php.Is it possible to use with multidimensional array? It is not working for me!
Here's what the array looks like
Array (
[0] => Array ( [0] => 1001 [1] => john [2] => example )
[1] => Array ( [0] => 1002 [1] => test [2] => dreamz )
[2] => Array ( [0] => 1001 [1] => john [2] => example )
[3] => Array ( [0] => 1001 [1] => example [2] => john )
[4] => Array ( [0] => 1001 [1] => john [2] => example )
)
Anybody can please help me...
The array_diff() (manual) function can be used to find the difference between two arrays: $array1 = array(10, 20, 40, 80); $array2 = array(10, 20, 100, 200); $diff = array_diff($array1, $array2); // $diff = array(40, 80, 100, 200);
The user comments on the array_unique page do shed some light on this. You will most likely find some hidden gems in those comments - its a very handy documentation.
Just a quick browser through revealed the following to remove duplicates from a multi dimensional array:
<?php
function super_unique($array)
{
$result = array_map("unserialize", array_unique(array_map("serialize", $array)));
foreach ($result as $key => $value)
{
if ( is_array($value) )
{
$result[$key] = super_unique($value);
}
}
return $result;
}
?>
You could serialize the sub-arrays (via serialize()
) into a new array, then run array_unique()
on that, and then unserialize the resulting set of arrays.
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