2008/8/24 Govinda <govinda@xxxxxxxxxxxxx>:
> $ThisDir = getcwd()."/thumbs";
> $DirHandle = opendir($ThisDir);
> if ($DirHandle = opendir($ThisDir)) {
> echo "Directory handle: $DirHandle\n";
> echo "Files:<br /><hr width=\"25\%\" align=\"left\" />";
>
> while ((false !== ($file = readdir($DirHandle))) & 1) {
> if (true == ($file="xxxx.jpg")) {
> echo "$file<br />";
> }
> }
> closedir($DirHandle);
> }
>
> But instead of printing only the name of the file which is equal to
> "xxxx.jpg", it seems to actually set the value of $file to "xxxx.jpg" on
> each iteration of the while loop, so what I get is a list of files all
> having the same name ("xxxx.jpg") and their number is equal to the actual
> number of files in that dir (plus 2 - for the "." and ".." files).
>
> How to say, "if the fileNAME is equal to...", or better yet, "if the
> fileNAME ends with '.jpg'"?
Hi, you've had a lot of responses to issues in your code snippet. I'm
just here to point out - for the sake of the archives, really - that
there are at least two more approaches you could take. PHP is one of
those languages where there's more than one way to do most things.
<?php
$path = './thumbs/' . sql_regcase ( '*.jpg' );
foreach ( glob( $path ) as $filename )
{
echo "{$filename}<br/>";
}
You can check the manual for full details, but briefly, sql_regcase()
returns a case-insensitive regular expression, and glob() returns an
array of filenames that match the path given to it (in this case
"./thumbs/*.jpg").
<?php
$dir = new DirectoryIterator( './thumbs/' );
foreach( $dir as $file )
{
if ( preg_match( "/jpg$/i", $file->getFilename() ) )
{
echo $file->getFilename() . "<br/>";
}
}
In this one, we're iterating over a DirectoryIterator object
(http://uk2.php.net/manual/en/class.directoryiterator.php) instead of
the output of glob(). RecursiveDirectoryIterator also exists, which
allows you to traverse an entire tree, rather than just one directory.
You've already been pointed to preg_match(), so I won't explain that one again.
--
http://www.otton.org/category/programming/php-tips-tricks/
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