[Resolved] Sorting files

[SilentUser]

Hi,

I want to get the files in a directory sorted by filenames. The output is a table with filename as a link to that file, filesize and last modified date. Now i want to sort the table by filename by discending order. I know i should first put the directory into an array and then sort the array. It's easy to say but... This it my code so far. It seems to work nice. Note: I'm using php3 so i can't use foreach or array_push and so on in this... Corrected code would be nice. Thanks for help in advance.

<?php 
echo "<table border=\"0\">\n";
// Directory name specified 
$folder = " ";
// Open the directory
$handle = opendir($folder) or die('Unable to open folder '.$folder);
	while ($file = readdir ($handle))
    	{
	    // Remove the . and .. and folders		
		if($file=="." or $file==".." or is_dir("$folder/$file")) continue;

    if (is_file("$folder/$file"))
    	{
        //Setup some common file size measurements.
		$kb=1024;
		$mb=1048576;
		$gb=1073741824;

        $size = filesize("$folder/$file");
        $link =  "<a href=\"$folder/$file\">$file</a>";

        // File last modified date
		$file_mod = date ("M d Y", filemtime("$folder/$file"));

      	//Format file size
		if ($size >= $gb)
			{
   			$show_filesize = number_format(($size / 1073741824),0) . " GB";
			}
		elseif ($size >= $mb)
			{
   			$show_filesize = number_format(($size / 1048576),0) . " MB";
			}
		elseif ($size >= $kb)
			{
   			$show_filesize = number_format(($size / 1024),0) . " KB";
			}
		elseif ($size >= 0)
			{
   			$show_filesize = $size . " bytes";
			}
		else
			{
   			$show_filesize = "0 bytes";
			}

		// Print into table		
		echo "<tr><td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$link&nbsp;</font></td>\n";
        echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$show_filesize</font></td>\n";
		echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$file_mod</font></td></tr>\n";
       } 
	}
// Close the directory	
closedir($handle); 

echo "</table>";
clearstatcache();	
?>

[SilentUser]

Well.. i found a little more advice from these forums.
I got the first colum (file name) sorted by descending but now all the rest colums are incorrect.
There's still something missing in my code?!
After struggling with this for a long time i'm quite close now, don't you think? Help still needed.

Here's my code so far:

<?php 
echo "<table border=\"1\">\n";
$fileList = array();

// Directory name specified 
$folder = "foldername";

// Open the directory
$handle = opendir($folder) or die('Unable to open folder '.$folder);
	while ($file = readdir ($handle))
    	{
	    // Remove the . and .. and folders		
		if ($file=="." or $file==".." or is_dir("$folder/$file")) continue;

    if (is_file("$folder/$file"))
    	{
        $fileList[] = $file;

        // Setup some common file size measurements.
		$kb=1024;
		$mb=1048576;
		$gb=1073741824;

        $size = filesize("$folder/$file");
        $link =  "<a href=\"$folder/$file\">$file</a>";

        // Last modified date
		$file_mod = date ("M d Y", filemtime("$folder/$file"));

      	// Format file size
		if ($size >= $gb)
			{
   			$show_filesize = number_format(($size / 1073741824),0) . " GB";
			}
		elseif ($size >= $mb)
			{
   			$show_filesize = number_format(($size / 1048576),0) . " MB";
			}
		elseif ($size >= $kb)
			{
   			$show_filesize = number_format(($size / 1024),0) . " KB";
			}
		elseif ($size >= 0)
			{
   			$show_filesize = $size . " bytes";
			}
		else
			{
   			$show_filesize = "0 bytes";
			}

	    } 
	}
// Close the directory	
closedir($handle); 

rsort($fileList);
reset($fileList);
for($i=0; $i<sizeof($fileList); $i++)
	{
	// Print into table		
	echo "<tr><td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$fileList[$i]&nbsp;</font></td>\n";
    echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$show_filesize</font></td>\n";
	echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$file_mod</font></td></tr>\n";
	}

echo "</table>";
clearstatcache();	
?>

[SilentUser]

I'm still having problems with this.
It should be a basic thing in php. I haven't found any good and useful examples yet.
I need to do it without foreach() loop.
Can anyone help?

[EricC]

you're not maintaining an association somehow between the array of filenames and the filesize/filemod strings that's why your output is getting kind of out of whack..

i used your code and made a few slight changes that hopefully will work for you. i'm sure someone could make this a lot more effecient..

<?php
echo "<table border=\"1\">\n";
$fileList = array();

// Directory name specified
$folder = "/web/test";

// Open the directory
$handle = opendir($folder) or die('Unable to open folder '.$folder);
    while ($file = readdir ($handle))
        {
        // Remove the . and .. and folders
        if ($file=="." or $file==".." or is_dir("$folder/$file")) continue;

    if (is_file("$folder/$file"))
        {
        $filetmp = $file;

        // Setup some common file size measurements.
        $kb=1024;
        $mb=1048576;
        $gb=1073741824;

        $size = filesize("$folder/$file");
        $link =  "<a href=\"$folder/$file\">$file</a>";

        // Last modified date
        $file_mod = date ("M d Y", filemtime("$folder/$file"));

          // Format file size
        if ($size >= $gb)
            {
               $show_filesize = number_format(($size / 1073741824),0) . " GB";
            }
        elseif ($size >= $mb)
            {
               $show_filesize = number_format(($size / 1048576),0) . " MB";
            }
        elseif ($size >= $kb)
            {
               $show_filesize = number_format(($size / 1024),0) . " KB";
            }
        elseif ($size >= 0)
            {
               $show_filesize = $size . " bytes";
            }
        else
            {
               $show_filesize = "0 bytes";
            }
        $fileList[] = "$filetmp,$show_filesize,$file_mod";
        }
    }
// Close the directory
closedir($handle);

rsort($fileList);
reset($fileList);
for($i=0; $i<sizeof($fileList); $i++)
    {
    $holder = explode(",",$fileList[$i]);
    // Print into table
    echo "<tr><td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$holder[0]&nbsp;</font></td>\n";
    echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$holder[1]</font></td>\n";
    echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$holder[2]</font></td></tr>\n";
    }

echo "</table>";
clearstatcache();
?>

[SilentUser]

Ok, it works now. Thanks EricC!
I just added HTML tag to echo statement to get a link to the file.
I'm posting this code one more time to help other newbies.
If you want to sort files ascending just switch rsort -> sort.

<?php
echo "<table border=\"1\">\n";
$fileList = array();

// Directory name specified
$folder = "/web/test";

// Open the directory
$handle = opendir($folder) or die('Unable to open folder '.$folder);
    while ($file = readdir ($handle))
        {
        // Remove the . and .. and folders
        if ($file=="." or $file==".." or is_dir("$folder/$file")) continue;

    if (is_file("$folder/$file"))
        {
        $filetmp = $file;

        // Setup some common file size measurements.
        $kb=1024;
        $mb=1048576;
        $gb=1073741824;

        $size = filesize("$folder/$file");

        // Last modified date
        $file_mod = date ("M d Y", filemtime("$folder/$file"));

        // Format file size
        if ($size >= $gb)
            {
               $show_filesize = number_format(($size / 1073741824),0) . " GB";
            }
        elseif ($size >= $mb)
            {
               $show_filesize = number_format(($size / 1048576),0) . " MB";
            }
        elseif ($size >= $kb)
            {
               $show_filesize = number_format(($size / 1024),0) . " KB";
            }
        elseif ($size >= 0)
            {
               $show_filesize = $size . " bytes";
            }
        else
            {
               $show_filesize = "0 bytes";
            }
        $fileList[] = "$filetmp,$show_filesize,$file_mod";
        }
    }
// Close the directory
closedir($handle);

rsort($fileList);
reset($fileList);
for($i=0; $i<sizeof($fileList); $i++)
    {
    $holder = explode(",",$fileList[$i]);
    // Print into table
    echo "<tr><td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;<a href=\"$folder/$holder[0]\">$holder[0]</a>&nbsp;</font></td>\n";
    echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$holder[1]&nbsp;</font></td>\n";
    echo "<td valign=\"middle\" align=\"left\"><font face=\"arial\" size=\"2\">&nbsp;$holder[2]&nbsp;</font></td></tr>\n";
    }

echo "</table>";
clearstatcache();
?>

[msbask]

Is there anyway to adjust this code to search through subdirectories as well?

[laserlight]

A purely recursive solution would be to wrap the code in a function, then separate the part that checks for the self and parent directory entries with the part that checks for subdirectories.

Instead, at the new part that checks specifically for subdirectories, have the function call itself, but with the subdirectory path as the entry path.