paginate filesystem / glob

chrisdee

Hello.

I have this simple code below but I would really apreciate some help/input how to customize it to paginate through the audio folder instead of listing all the content out at once.

<?php
print "<table border=1>"; #start table
foreach (glob("audio/*.wav") as $filename) { #loop through folder with glob
 print "<tr>
<td>".$filename."</td>
<td>".round(filesize($filename)/(1024)/(1024),1)." MB</td>
<td>". date("d.m.Y H:i:s", filemtime($filename))."</td>
</tr>";
}
print "</table>"; #end table
?>

johanafm

You could serialize the array and keep track of the current position index into the array and store these in $_SESSION. Or you could just store the index and re-glob on each request. Or you could keep the current index in the URL.

And when I say "position index", you can choose any value that properly gives you enough information to decide which part of the glob-array to use. Index of first displayed element, last displayed element, middle displayed element, current page...

chrisdee

johanafm;10984738 wrote:
You could serialize the array and keep track of the current position index into the array and store these in $_SESSION. Or you could just store the index and re-glob on each request. Or you could keep the current index in the URL.

And when I say "position index", you can choose any value that properly gives you enough information to decide which part of the glob-array to use. Index of first displayed element, last displayed element, middle displayed element, current page...

Thank you.

It sound like re-glob on each request involves the least amount of code ?
So, how do I do that ?

johanafm

It involves the least amount of code since it would use the exact same code every time, i.e. [man]glob[/man].

Glob will still give you an array, just like before. The only difference now is that you keep track of what "page" you are on, thereby skipping ahead to some other array index than 0. Such as 20, 40, 60 or whatever increment corresponds to the number of files listed on each paginated set, and instead of iterating over the entire array to output its contents, you stop after 20 files, or whatever number corresponds to the number of files listed per page.

chrisdee

Hello again. I rewrote the script and got it to work like I wanted.
Sorry for all the missing " tags.

However there is one more thing I would like to get the script to do, and it's not excactly a php thing.

I would like that the dropdown menu will show the active/current page Im on.
Now it resets to page 2 after I select a page.
Any idea how I do this ?

Here is the working script :

<?php
$pageNo = $_GET['pageNo'];
$filesPerPage = "28";

$dir = "../media/audio/*.wav";
$readDir = glob($dir);
$sliceDir = array_slice($readDir,$pageNo,$filesPerPage);

echo "<table border=1><tr><td bgcolor=gray colspan=5><font color=white>Phonetic Database<font></td></tr>";
echo "<tr><td bgcolor=lightgrey>Name</td><td bgcolor=lightgrey><!--Player--></td><td bgcolor=lightgrey>Size</td><td bgcolor=lightgrey>Date</td>";

echo "<td>Page ".$pageNo." ";
echo "<select onchange='window.location.href=this.options[this.selectedIndex].value;'";
for($i=1; $i<=count($readDir); $i++) {
 echo "<option value=index.php?pageNo=$i>".$i."</option>";
}
echo "</select></td>";
echo "</tr>";

foreach ($sliceDir as $file) {
 echo "<tr>";
  echo "<td>".substr($file,26)."</td>";
  echo "<td><object>
        <param name=autostart value=false>
        <param name=src value=$file>
        <param name=autoplay value=false>
        <param name=controller value=true>
        <embed src=$file controller=true autoplay=false autostart=false type=audio/wav height=15>
        </object>
        </td>";
  echo "<td>".round(filesize($file)/(1024)/(1024),1)." MB</td>";
  echo "<td>". date("d.m.Y H:i:s", filemtime($file))."</td>";
  echo "<td></td>";
 echo "</tr>";
}
echo "</table>";
echo count($readDir)." files";
?>

johanafm

printf('<option value="index.php?pageNo=&#37;d" %s>%d</option>',
	$i,
	$i == $pageNo ? 'selected="selected' : '',
	$i
);

chrisdee

Thank you🙂