arrays HELP!

[biscutty]

I have the following code to retrieve and display a list of jpg images in a directory (displayed in a table)

I want to check each image if it has a reference in a database, would this be very slow to do with a loop, and if so, would using an array be the answer?

Could anyone give me a few pointers on the code?

Thanks

My code Below:

<table width="435" height="325" border="0" cellpadding="0" cellspacing="0"> 
  <tr> 
    <td width="147" bgcolor="#E2E2E2">nother image</td> 
    <td width="288"> 


<?     
$jcthumbs = "../contacts/".$_SESSION['jcglobal']."/thumbnails"; 
$jcimages = "../contacts/".$_SESSION['jcglobal']."/images"; 
$dir = opendir($jcthumbs); 
?> 
<table border="1" cellpadding="3" cellspacing="10" bordercolor="#FF0000"><tr> 
<? 

$IC = 0;  
    while ($file = readdir($dir)){  
        if ( eregi(".jpg$","$file")){  
        $IC++;  
        if ($IC == 1){ print ("<tr>\n"); }  

        print ("<td><img src=$jcthumbs\$file>\n");  
        print ("<a href=\"$jcimages\$file\">$file</a>\n");  

        //    if (blah = "ha") { 
        //        $myImgSelect = "<input name="Selected" type="checkbox" value="" checked>"; 
        //        } 
        //    else { $myImgSelect = "<input name="Selected" type="checkbox" value="" checked>"; 

        print ("<input type=\"checkbox\" name=\"Selection\" value=\"picname\">\n"); 
        print ("</td>"); 


        if ($IC >= 4){ print ("</tr>\n"); $IC = 0; }  
        }  
    } 


    ?> 
      </tr></table> 

[barand]

When you process the directory, store jpg filenames in array1

Query the database and store filenames in array2.

Use [man]array_diff[/man] to see which, if any, are missing.

hth