I'm sorry but this morning a fresh mind I found the solution!

here's the code:

<?php
$categorie=array();

$x=0;
foreach($cat_list as $cat => $value) {
foreach($value as $c => $v) {
$categorie[$x][$c]=$v;
}
$x++;
}
?>
and then a simple loop to the last array

thanks for this code wonderufl