white spaces

[slimjim]

Ok I have a problem, in my table i list topics like this :

This And that
One and Two
Hello and good bye

Now those are populated in a drop down box with this code :

<? 

$sql="SELECT categoryb FROM categoryb ORDER by categoryb ASC"; 
$result=mysql_query($sql); 

$options=""; 

while ($row=mysql_fetch_array($result)) { 

//$id=$row["id"]; 
$categoryb=$row["categoryb"];
$selected = ($categoryb == $_GET['categoryb']) ? ' selected="selected"' : '';
$options.="<OPTION VALUE=\"$categoryb\">".$categoryb; 
} 
?> 
<SELECT NAME=subcat> 
<OPTION VALUE=0>Choose 
<?=$options?> 
</SELECT> 

Now when i chose on of those subcat, the subcat has white spaces in it, and I want to add into the database

  

between each word.

Example : This And That
Example 2 : One And Two

I am not putting in the   like i want it too

Now I tried these right before the insert but not working :

$subcat = str_replace ( ' ', ' ', $subcat );
$subcat = str_replace ( '', ' ', $subcat );

Even did this :

$num = ' ';
$subcat = "$subcat";
$subcat = ereg_replace('!\s+!', $num, $subcat);

Not having no luck at all.

[devinemke]

// to change spaces to nbsp
$subcat = str_replace(' ', ' ', $subcat);

// to change nbsp to spaces
$subcat = str_replace(' ', ' ', $subcat);