preg_replace on indexed array

[syn3rgy]

I cant seem to get preg_replace to work on an array that contains two strings. var_dump of the array $catarray looks like this:

 

array(2) { [0]=> string(407) "category1\ncategory2\ncategory3\ncategory4" [1]=> string(1026) "category1\ncategory2\ncategory3\ncategory4\ncategory5" }

 

I am trying to eliminate the line breaks "\n" and replace them with ",". The code I wrote to try this is:

 

$test = preg_replace("(\n)",",",$catarray);
var_dump($test);

 

The dump looks exactly the same as the before I ran the preg_replace. If I run the code on a simple string like "category1\ncategory2\ncategory3\ncategory4" it works as expected. From what I understand about preg_replace it works on arrays, what am I missing?

 

Again any help would be great, I have exhausted my Google skills on this one.

 

Thanks for the time,

Benjamin

[is_numeric]

Note the way I have written the array and then looped through it performing the change

 

<?php

$array = array(
   "category1\ncategory2\ncategory3\ncategory4",
   "category1\ncategory2\ncategory3\ncategory4\ncategory5"
   );


foreach($array as $values){

   $newArray[] = preg_replace("(\n)",",",$values);   
}

echo "<pre>";
print_r($newArray);
echo "</pre>";

?>

Edited March 30, 2011 by is_numeric