searching for "a needle in a haystack"

[Archimedees]

 

I have two arrays,  $arCurrentHost and $arCurrentServer they both contains list of servers.

Now, some values inthe first array are also in the second array. I want to create a third array containing values in both lists.

First, I assign the keys in the second array to a $needle and walk through the first array to see if there is a hit. If hit, we do nothing,

if no hit, we add the needle to $arCurrentHost. Can somebody please pinpoint why this function is not returning the results I want?

Please? Thanks.

 

function create_list($arNewCurrentHost)

{

  if (isset($arCurrentHost) && (isset($arCurrentServer))

  {

  $arNewCurrentHost = $arCurrentHost;

  $i=0;

  $MaxCurrentServer = count($arCurrentServer);

    for($i=0;  $i<$MaxCurrentServer; $i++)

    {

    $needle = $arCurrentServer [$i];

    }

    array_search($arNewCurrentHost, $needle);

    foreach ($arNewCurrentHost as $key => $value)

    {

    if($value == $needle)

    {

      //do nothing

    }

    else

    {

    array_push($arNewCurrentHost, $needle );

    }

   

    }

  }

  else

  {

  die();

  } 

return $arNewCurrentHost;

 

}

 

[zq29]

The function array_intersect() does what you want.

[Archimedees]

 

array_intersect gives an array containing elements in first array that are also in second array, leaving out the elements in first array that are not in second array and vice-versa. I want to have an array containing all the elements in first and all the elements in second array. If the elements in second array already exist in first array we just do nothing but if not we add them to the first array. Thanks.

[Barand]

do you mean

 

<?php
$array1 = array(1,2,3);
$array2 = array(2,3,4);

$arr = array_unique (array_merge ($array1, $array2));

echo '<pre>', print_r($arr, true), '</pre>';
?>

-->

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [5] => 4
)