select distinct from a directory

[Hooch]

Hey all. Need some help here. I have a directory of many images. These images are tagged as follows...1220315898-1.jpg1220315898-2.jpg1220315898-3.jpg1220315973-2.jpg1220316023-1.jpg1220316023-3.jpgThese are images linked to news items. We can have up to 3 images linked to it. Hence the -1, -2 or -3. Now some images may be deleted, (this is an option I am including) that's why you see the odd line up. So I need to be able to show only the images with certain dates tagged to them.Here's my code so far...

		$dir  = "images/fun_stuff/";//Directory to chose from		$pattern = 1220316023;//This is the date from the DB we need		// Open a known directory, and proceed to read its contents		if (is_dir($dir)) 		{			if ($dh = opendir($dir)) 			{				while (($subject = readdir($dh)) !== false) 				{					preg_match($pattern, $subject, $matches); 					print_r($matches);				}			closedir($dh);			}		}

Unfortunately this code shows all the images, when it should print out1220316023-1.jpg1220316023-3.jpgonly.Thank you for any help.

[boen_robot]

Try

$pattern = "^1220316023";

just in case.

[jeffman]

Since you're passing an integer instead of a regular expression, I suspect it's being evaluated as true for everything matched against it. Try this instead:$pattern = '/1220316023/';And why are you collecting $matches? That's for back references. Try just this:

if (preg_match($pattern, $subject) ){	echo $subject;}

EDIT: I added a right parenthesis.

[Hooch]

I took the while statement out, but it's still not working..

		$dir  = "images/fun_stuff/";//Directory to chose from		// Open a known directory, and proceed to read its contents		if (is_dir($dir)) 		{			if ($dh = opendir($dir)) 			{				$subject = readdir($dh); 				preg_match($pattern, $subject, $matches); 				print_r($matches."<br />");				closedir($dh);			}		}

boen_robot...it's still same result.Deirdre's Dad, I even tried $pattern = '/^1220316023/';and still a no go

[Hooch]

Here's a better set up of my code.

<?PHPsession_start(); include'includes/db.php';$news = mysql_query("SELECT * FROM `fun_stuff` WHERE `id` = '8' ") or die(mysql_error());$r = mysql_fetch_array($news);$pattern = '/^1220442774/';//This is the date from the DB we need$dir  = "images/fun_stuff/";//Directory to chose from// Open a known directory, and proceed to read its contents	   if (is_dir($dir))		{			if ($dh = opendir($dir))			{				while (($subject = readdir($dh)) !== false)				{					preg_match($pattern, $subject, $matches);					print_r($matches."<br />");				}								closedir($dh);			}		}?>

This code should only show 2 results.But what the page reveals is ...ArrayArrayArrayArrayArrayArrayArray

[jeffman]

I TOLD you not to use $matches in this context. It's not what you seem to think. I tested this code and it works:

				while (($subject = readdir($dh)) !== false)				{					if ( preg_match($pattern, $subject) ) {						echo $subject . "<br>";					}				}

I was 99% sure it would work, but you had me guessing.FWIW, if you plan to regularly cycle through a loop hundreds of times (I don't know if you are) the manual recommends using strpos() or strstr() instead. In the long haul, it's faster.

[Hooch]

Thanks DD, but I am trying that too.I just wanted to show my code a little better.I'm actually adding your code below what you see above.As you posted that last remark, I was trying it out.And yes it worked!!Thank you

[Hooch]

Here's my working code thanks to DD

<?PHPsession_start(); include'includes/db.php';$news = mysql_query("SELECT * FROM `fun_stuff` WHERE `id` = '8' ") or die(mysql_error());$r = mysql_fetch_array($news);$pattern = '/^'.$r['date'].'/';//This is the date from the DB we need$dir  = "images/fun_stuff/";//Directory to chose from// Open a known directory, and proceed to read its contents	   if (is_dir($dir))		{			if ($dh = opendir($dir))			{				while (($subject = readdir($dh)) !== false)				{					if ( preg_match($pattern, $subject) ) 					{						echo '<br /><img src="images/fun_stuff/'.$subject.'" class="pic_border_larger" style="background-color: #E7E7E7; float: left; margin: 0 0 10px 10px; clear: left; margin:5px;" width="" height=""/>';					}				}			}		}?>

[jeffman]

Glad it works.