jeffshead

So this is the PHP code that is used to display the file tree on the web page: <?php echo php_file_tree($FileLocations["tracy"], array("gif", "jpg", "jpeg", "png","pdf", "zip", "xlsx")); ?> Looks like I need to add something for the $return_link parameter, for the php_file_tree() function. Sorry, I don't even know what $return_link is supposed to be or what it is used for. If I change that line to: <?php echo php_file_tree($FileLocations["tracy"], test, array("gif", "jpg", "jpeg", "png","pdf", "zip", "xlsx")); ?> I get this error: If I change that line to: <?php echo php_file_tree($FileLocations["tracy"], $return_link, array("gif", "jpg", "jpeg", "png","pdf", "zip", "xlsx")); ?> It seems to work without any errors in PHP 8.1.

This is output of echo and of print_r for PHP 7.3: echo $return_link; Array print_r($return_link); ArrayArrayArrayArrayArrayArrayArrayArray

I did not write the script. It is old so that's why the author had concern for PHP4. This is output of echo and of print_r : echo $return_link; Array print_r($return_link); Array ( [0] => gif [1] => jpg [2] => jpeg [3] => png [4] => pdf [5] => zip [6] => xlsx ) Looks like $return_link is somehow getting mixed up with $extensions since updating server from PHP 7 to PHP 8. If I revert back to PHP 7.3, the script works without error.

Thank for taking the time! Below is all of the code in that PHP file: <?php /* == PHP FILE TREE == Let's call it...oh, say...version 1? == AUTHOR == Cory S.N. LaViska http://abeautifulsite.net/ == DOCUMENTATION == For documentation and updates, visit http://abeautifulsite.net/notebook.php?article=21 */ function php_file_tree($directory, $return_link, $extensions = array()) { // Generates a valid XHTML list of all directories, sub-directories, and files in $directory // Remove trailing slash if( substr($directory, -1) == "/" ) $directory = substr($directory, 0, strlen($directory) - 1); $code .= php_file_tree_dir($directory, $return_link, $extensions); return $code; } function php_file_tree_dir($directory, $return_link, $extensions = array(), $first_call = true) { // Mod for Sitelok global $FileLocation,$FileLocations; // End of mod // Recursive function called by php_file_tree() to list directories/files // Get and sort directories/files if( function_exists("scandir") ) $file = scandir($directory); else $file = php4_scandir($directory); natcasesort($file); // Make directories first $files = $dirs = array(); foreach($file as $this_file) { if( is_dir("$directory/$this_file" ) ) $dirs[] = $this_file; else $files[] = $this_file; } $file = array_merge($dirs, $files); // Filter unwanted extensions if( !empty($extensions) ) { foreach( array_keys($file) as $key ) { if( !is_dir("$directory/$file[$key]") ) { $ext = substr($file[$key], strrpos($file[$key], ".") + 1); if( !in_array($ext, $extensions) ) unset($file[$key]); } } } if( count($file) > 2 ) { // Use 2 instead of 0 to account for . and .. "directories" $php_file_tree = "<ul"; if( $first_call ) { $php_file_tree .= " class=\"php-file-tree\""; $first_call = false; } $php_file_tree .= ">"; foreach( $file as $this_file ) { if( $this_file != "." && $this_file != ".." ) { if( is_dir("$directory/$this_file") ) { // Directory $php_file_tree .= "<li class=\"pft-directory\"><a href=\"#\">" . htmlspecialchars($this_file) . "</a>"; $php_file_tree .= php_file_tree_dir("$directory/$this_file", $return_link ,$extensions, false); $php_file_tree .= "</li>"; } else { // File // Get extension (prepend 'ext-' to prevent invalid classes from extensions that begin with numbers) $ext = "ext-" . substr($this_file, strrpos($this_file, ".") + 1); // Mod for Sitelok if ($return_link!="") { $slfile=str_replace($FileLocations[$return_link],"",$directory."/".$this_file); $link = sl_siteloklink($slfile.":".$return_link,1); } else { $slfile=str_replace($FileLocation,"",$directory."/".$this_file); $link = sl_siteloklink($slfile,1); } // End of mod $php_file_tree .= "<li class=\"pft-file " . strtolower($ext) . "\"><a href=\"$link\">" . htmlspecialchars($this_file) . "</a></li>"; } } } $php_file_tree .= "</ul>"; } return $php_file_tree; } // For PHP4 compatibility function php4_scandir($dir) { $dh = opendir($dir); while( false !== ($filename = readdir($dh)) ) { $files[] = $filename; } sort($files); return($files); }

I have the following code which throws an error since updating to PHP 8.x: Code: if ($return_link!="") { $slfile=str_replace($FileLocations[$return_link],"",$directory."/".$this_file); $link = sl_siteloklink($slfile.":".$return_link,1); } else { $slfile=str_replace($FileLocation,"",$directory."/".$this_file); $link = sl_siteloklink($slfile,1); } Error: Line 71 referenced in the error is: // This is the second line in the code block above $slfile=str_replace($FileLocations[$return_link],"",$directory."/".$this_file); I have tried rewriting line 71 but I don't know what the heck I'm doing. Can someone suggest the correct code?

After more testing, I don't think the problem is related to the PHP version. I created a new test environment with both versions of PHP and I cannot re-create the issue on my server. The issue must be related to the host provider's server and/or settings. I think it must have something to do with sessions. Any ideas on what settings to look for?

From previous code: tstamp = $_SESSION['tstamp']; $hash = $_SESSION['thash'];

The code snippet below works fine with PHP 5.3 (register_globals = Off) but does NOT give the same results with PHP 5.5: $verhash = md5($tstamp."salt"); if ($hash != $verhash) { $_SESSION['direct'] = 1; if(isset($_SESSION['ntrd'])) { unset($_SESSION['ntrd']); } if(isset($_SESSION['rntr'])) { unset($_SESSION['rntr']); } header('refresh: 0; url=/accessDenied.php'); exit; } I'm not sure if there is a problem with the above snippet or with some other part of the code but I always get redirected to the 'accessDenied.php' page with PHP 5.5. Can someone tell me if the snippet above would output differently on PHP 5.5? Thanks, Jeff