Listing only certain files in directory

[galf]

[Windows XP pro sp2, running abyss webserver]

Ok, I'm stuck.
I'd like to list only specific types of files in a directory - for example, only html files.
I've found a script that will list ALL of the files in the directory, but I'd like to limit it to only files of a certain type:
[code]
<?php
$myDirectory = opendir(".");

while($entryName = readdir($myDirectory)) {
$dirArray[] = $entryName;
}

closedir($myDirectory);

$indexCount = count($dirArray);
Print ("$indexCount files<br>\n");

sort($dirArray);

print("<TABLE border=1 cellpadding=5 cellspacing=0 class=whitelinks>\n");
print("<TR><TH>Filename</TH><th>Filetype</th><th>Filesize</th></TR>\n");
for($index=0; $index < $indexCount; $index++) {
if (substr("$dirArray[$index]", 0, 1) != "."){ // don't list hidden files
print("<TR><TD><a href=\"$dirArray[$index]\">$dirArray[$index]</a></td>");
print("<td>");
print(filetype($dirArray[$index]));
print("</td>");
print("<td>");
print(filesize($dirArray[$index]));
print("</td>");
print("</TR>\n");
}
}
print("</TABLE>\n");

?>
[/CODE[

Does anyone have any ideas/suggestions?

[nathj]

[Windows XP pro sp2, running abyss webserver]

Ok, I'm stuck.
I'd like to list only specific types of files in a directory - for example, only html files.
I've found a script that will list ALL of the files in the directory, but I'd like to limit it to only files of a certain type:
[php]
<?php
$myDirectory = opendir(&quot;.&quot;);

while($entryName = readdir($myDirectory)) {
$dirArray[] = $entryName;
}

closedir($myDirectory);

$indexCount = count($dirArray);
Print (&quot;$indexCount files<br>\n&quot;);

sort($dirArray);

print(&quot;<TABLE border=1 cellpadding=5 cellspacing=0 class=whitelinks>\n&quot;);
print(&quot;<TR><TH>Filename</TH><th>Filetype</th><th>Filesize</th></TR>\n&quot;);
for($index=0; $index < $indexCount; $index++) {
if (substr(&quot;$dirArray[$index]&quot;, 0, 1) != &quot;.&quot;){ // don't list hidden files
print(&quot;<TR><TD><a href=\&quot;$dirArray[$index]\&quot;>$dirArray[$index]</a></td>&quot;);
print(&quot;<td>&quot;);
print(filetype($dirArray[$index]));
print(&quot;</td>&quot;);
print(&quot;<td>&quot;);
print(filesize($dirArray[$index]));
print(&quot;</td>&quot;);
print(&quot;</TR>\n&quot;);
}
}
print(&quot;</TABLE>\n&quot;);

?>
[/php]

Does anyone have any ideas/suggestions?

Hi,

Looking over the code supplied I noticed that you know what the file type:
[php]
filetype($dirArray[$index]) ;
[/php]
So where the code checks to make sure the file is not hidden you could simply expand that check to ensure the file type matches what you are after.

The downside with the option is that yyou get all files regardless and then only use some. This may be a good or a bad thing.


So you could issue something like:
[php]
if (substr(&quot;$dirArray[$index]&quot;, 0, 1) != &quot;.&quot; AND filetype($dirArray[$index] == &quot;html&quot;)
{
// carry on
}
[/php]
This would only display files where the type was html. You can see how this can be modified. If there is more than one valid file type then you ould store the valid ones in an array and then search the array as part of the if condition.

I hope this helps
nathj

[galf]

Hey! thanks for the speedy reply.

I realized I was being too lazy about this, and if I didn't figure something out on my own I would never learn to code effective php.
Because there's only one filetype (other than the main index.php that does the parsing) in the directory, I decided to ditch the code I listed above for something like this:

<?php
echo "<table>";
$files = scandir(".");
foreach ($files as $key => $value)
if ($value == "index.php" ) {
echo "$null";
}
elseif ($value == ".") {
echo $null;
}
elseif ($value == "..") {
echo $null;
}
else {
echo "<td><a href=$value>$value</a></td>";
}
echo "</table>";
?>
 

I'm pretty impressed with this - mostly because it's my first code and it went through with very few corrections, but if you have any ideas on how to improve upon that, it would be great!

Thanks again for your help, and I think I'm going to keep the first code in storage somewhere (with your tips) as something to play around with in future.

[nathj]

Hey! thanks for the speedy reply.

I realized I was being too lazy about this, and if I didn't figure something out on my own I would never learn to code effective php.
Because there's only one filetype (other than the main index.php that does the parsing) in the directory, I decided to ditch the code I listed above for something like this:
[php]
<?php
echo &quot;<table>&quot;;
$files = scandir(&quot;.&quot;);
foreach ($files as $key => $value)
if ($value == &quot;index.php&quot; ) {
echo &quot;$null&quot;;
}
elseif ($value == &quot;.&quot;) {
echo $null;
}
elseif ($value == &quot;..&quot;) {
echo $null;
}
else {
echo &quot;<td><a href=$value>$value</a></td>&quot;;
}
echo &quot;</table>&quot;;
?>
[/php]

I'm pretty impressed with this - mostly because it's my first code and it went through with very few corrections, but if you have any ideas on how to improve upon that, it would be great!

Thanks again for your help, and I think I'm going to keep the first code in storage somewhere (with your tips) as something to play around with in future.

Hi,

That looks pretty good, and you're right of course the best way to learn is to have a go.

You could try changing the if elseif structure for a switch. It would be a bit easier to maintain. Alternatively a negative IF would do the trick:
[php]
echo &quot;<table>&quot;;
$files = scandir(&quot;.&quot;);
foreach ($files as $key => $value)
{
if((! $value == 'index.php') AND (!$value=='.') AND (!$value=='..'))
echo &quot;<td><a href=$value>$value</a></td>&quot;;
}
}
[/php]

Of course if it's now working then ther eis no real reason to change anything.

Cheers
nathj