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copied!<p>i would use a bitmask for this: <a href="http://php.net/manual/en/language.operators.bitwise.php" rel="nofollow">http://php.net/manual/en/language.operators.bitwise.php</a></p> <pre><code><?php // define your types and groups: $listedTypes["TYPE_MSWORD"] = 1; $listedTypes["TYPE_MSEXCEL"] = 2; $listedTypes["TYPE_MSPOWERPOINT"] = 4; $listedTypes["TYPE_OFFICE"] = $listedTypes["TYPE_MSWORD"] + $listedTypes["TYPE_MSEXCEL"] + $listedTypes["TYPE_MSPOWERPOINT"]; $listedTypes["TYPE_HTML"] = 8; $listedTypes["TYPE_SVG"] = 16; $listedTypes["TYPE_W3C"] = $listedTypes["TYPE_HTML"] + $listedTypes["TYPE_SVG"]; $listedTypes["TYPE_ALL"] = $listedTypes["TYPE_OFFICE"] + $listedTypes["TYPE_W3C"]; // try to open the page.php?doctype=TYPE_MSWORD // or page.php?doctype=TYPE_ALL if(!isset($_GET['doctype'])) $_GET['doctype'] = "TYPE_ALL"; if(!isset($listedTypes[$_GET['doctype']])) $_GET['doctype'] = "TYPE_ALL"; $requestedType = $listedTypes[$_GET['doctype']]; foreach ( $files as $file ) { $xml = new SimpleXMLElement( $file, 0, true ); if($xml->doctype == "......") $fileType = $listedTypes["TYPE_MSWORD"]; elseif($xml->doctype == ".........") $fileType = $listedTypes["TYPE_MSEXCEL"]; elseif($xml->doctype == ".........") $fileType = $listedTypes["TYPE_MSPOWERPOINT"]; //... continue // then check if the $type matches the $selection of $_GET['doctype'] // if the filetype is in the requested file type group, it will be shown if($fileType & $requestedType) { echo' <tr> <td id="'. $xml->doctype .'" name="'. $xml->doctype .'" class="mainTable">' . $xml->doctype . '</td> <td><a href="viewdoc.php?docname=' . basename( $file, '.xml' ) . '&username='. $xml->startedby .'&myname='. $_SESSION['username'] .'">' . basename( $file, '.xml' ) . '</a></td> <td><a href="viewprofile.php?name='. $xml->startedby .'">'. $xml->startedby .'</a></td> <td>'. $xml->date .'</td> <td>* * * * *</td> <td>'. filesize( $file ) .'kb</td> </tr> '; } } </code></pre>

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