[RESOLVED] Removing blank keys in array

[LingoOutsider]

After using array_unique() I appear to have an array that has blank fields in it.

(1-1,1-5,,1-0,,,,1-2)

Any Sugestions on the removal of said fields, I've tried this...

function myfunction($v){
if ($v==="")  {
  return false;  }
return true;}
array_filter($arrayday,"myfunction"); 

???

[nmadd]

How about array_diff?
http://us3.php.net/array_diff

[kows]

..? how would array_diff() do anything? that function compares multiple arrays. he only has one array.

you should be able to use array_filter() without a callback function to remove false, empty and null values. there is an example on php.net:

<?php

$entry = array(
             0 => 'foo',
             1 => false,
             2 => -1,
             3 => null,
             4 => ''
          );

print_r(array_filter($entry));
?>

The above example will output:

Array
(
    [0] => foo
    [2] => -1
)

keys will be preserved, though.

[nmadd]

..? how would array_diff() do anything? that function compares multiple arrays. he only has one array.

I don't know. Does this work?

$arr = array_diff($arr, array(""));

[kows]

touche! I didn't even think about that. array_filter() with no callback and array_diff() with an array with an empty string should both produce the same result. though, array_filter() seems like it could be faster.

[LingoOutsider]

Thanks I'll give them both a try

[LingoOutsider]

Because the $keys are no longer [1][2][3]... and have gaps in them [1][3][6]... how can I echo/print them in a list?

[LingoOutsider]

never mind, I can do it with...

foreach ($array as $value){
       echo $value;}