PHP syntax

What I would like to do is use what Luke or Burhan gave me to try as far as replacing the spaces with an underscore, but I am having a hard time placing the variable for me to manipulate! Overall all result will be 3 columns with different record fields represnted by a bar code with spaces taken out. I have been looking at this for several hours now and I am still scrathcing my head. Any suggestions? <?PHP include 'drop.php'; $DBName = "******"; $table = "*****"; $db = mysql_connect("$DBhost","$DBuser","$DBpass") or die("Problem connecting"); mysql_select_db("$DBName") or die("Problem selecting database"); $query = "SELECT * FROM $table"; $result = mysql_query($query) or die ("Query failed"); //let's get the number of rows in our result so we can use it in a for loop $numofrows = mysql_num_rows($result); ?> <?PHP echo "<body>"; echo "<TABLE align=left BORDER=\"1\">\n"; echo "<TR width=75%<TD WIDTH=150><font size=2><center><b>BLDG ROOM CABINET</b></center></TD>\n"; for($i = 0; $i < $numofrows; $i++) { $row = mysql_fetch_array($result); //get a row from our result set //$Bldgroomcabpost = ".$row['Bldgroomcab']."; //$Bldgroomcabspace = str_replace(" ", "_", $Bldgroomcabpost); echo "<TD><font size=3 face=********><center>".$row['Bldgroomcab']."</TD>\n"; echo "</TR>\n"; } //now let's close the table and be done with it echo "</TABLE>\n"; echo "</body>" ?>