sorting files by date order in a directory

[rupertbj]

I have the following code for displaying images from a directory, but they are unsorted. I would like to sort the result by date. How can I achieve this?

Many thanks.... and here is the code:

if(is_dir($pics)) { 
   if($d = opendir($pics)) {
      while(($file = readdir($d)) !== false) {
        if(substr($file, -3) == "JPG") {
            print "
				<table width=80% align=center border=0 cellpadding=0 cellspacing=0 bgcolor=#FFFFFF>
				  <tr>
				 	<td width=10%>&nbsp;</td>
					<td width=80%>&nbsp;</td>
					<td width=10%>&nbsp;</td>
				  </tr>
				  <tr>
				 	<td width=10%>&nbsp;</td>
					<td width=80%>
						<table width=100% border=0 cellpadding=0 cellspacing=0 bgcolor=#FFFFFF>
				  			<tr>
								<td width=100% valign=top align=left><img src=/$pics/$file></td>
							</tr>
						</table>
					</td>
					<td width=10%>&nbsp;</td>
				  </tr>
				  <tr>
				 	<td width=10%>&nbsp;</td>
					<td width=80%>&nbsp;</td>
					<td width=10%>&nbsp;</td>
				  </tr>
				</table>				
				";
         }
      }
      closedir($d);
   }
}

[NogDog]

I'd probably use glob() to create an array of files, then use usort() to sort it, using filemtime() in the callback function.

[rupertbj]

Any chance of an example of how that looks in practice that I can adapt for my code?
I've been looking here and on php.net, but I cannot figure it out.
Many thanks,
R

[rupertbj]

I am trying to sort the files into date order displayed by the following code.... any ideas?

if(is_dir($pics)) { 
   if($d = opendir($pics)) {
      while(($file = readdir($d)) !== false) {
          if(substr($file, -3) == "JPG" or "jpg") {
            print "
				<table width=80% align=center border=0 cellpadding=0 cellspacing=0 bgcolor=#FFFFFF>
				  <tr>
				 	<td width=10%>&nbsp;</td>
					<td width=80%>&nbsp;</td>
					<td width=10%>&nbsp;</td>
				  </tr>
				  <tr>
				 	<td width=10%>&nbsp;</td>
					<td width=80%>
						<table width=100% border=0 cellpadding=0 cellspacing=0 bgcolor=#FFFFFF>
				  			<tr>
								<td width=100% valign=top align=left><img src=/$pics/$file></td>
							</tr>
						</table>
					</td>
					<td width=10%>&nbsp;</td>
				  </tr>
				  <tr>
				 	<td width=10%>&nbsp;</td>
					<td width=80%>&nbsp;</td>
					<td width=10%>&nbsp;</td>
				  </tr>
				</table>				
				";
         }
      }
      closedir($d);
   }
}

[halojoy]

Hi.
Basically what you should do is put all those .JPG files
into one new array, say $alljpg = array();

Regarding time when a file was created/last changed
you have this function [man]filemtime[/man]

int = filemtime( $filename )

Where the returned filemtime (probably file-modification-time)
is one integer, Unix timestamp, just like [man]time/man
This means you should be able to sort $alljpg by the [man]filemtime[/man] value.

It might not be easy for you to make all this.
But I am sure some nice helper can guide you with a bit of code.

Regards 🙂

[NogDog]

<?php
$dir = 'path/to/images';
$curDir = getcwd();
if(chdir($dir))
{
   $files = glob('*.{JPG,jpg}', GLOB_BRACE);
   usort(
      $files,
      create_function(
         '$a,$b',
         'return filemtime($a) - filemtime($b);'
      )
   );
   chdir($curDir);
   foreach($files as $file)
   {
      echo "<li>".date('Y-m-d H:i:s', filemtime("$dir/$file"))." - $file</li>\n";
   }
}
else
{
   echo "problem with image directory";
}