Re: a little trickery

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On Saturday, September 08, 2012 03:49:27 PM you wrote:
> On 8 Sep 2012, at 15:35, David McGlone <david@xxxxxxxxxxxxx> wrote:
> > I have a function that reads a directory and gets all the file names of
> > images, and I am wondering if it's possible to concatinate this function
> > withint an image tag. Here's an example I tried.
> > 
> > function pictures() {
> > 
> >    $dir = 'images/property_pics/';
> >    $file = array();
> >    
> >      if(is_dir($dir)){
> > 	
> > 	if($open = opendir($dir)){
> > 	
> > 	  while (($file = readdir($open)) !== false && $file !== ".") {
> > 	
> > 	$names = substr($file, 9, 20);
> > 	echo $names;
> > 	
> > 	}
> > 	
> > 	}
> > 	
> >      closedir($handle);
> >    
> >    }
> > 
> > }
> > 
> > $rs = $pager->paginate();
> > 
> >  if(!$rs) die(mysql_error());
> >  while($row = mysql_fetch_assoc($rs)) {
> >  
> >    echo "<div id='record'>";
> >    echo "<span>";
> >    echo <im src = "images/$row[$MSL_No]pictures();">
> > 
> > What I am trying to do is get the last part of an image name, because I
> > know the $MSL_No is always a 9 character name which matches the image
> > name in but in the database, the last bit of characters are not there so
> > I'm trying to take the last characters of the image name and concatinate
> > them to each image name..
> > 
> > Wow this is harder to explain that I thought. Here's an example
> > 
> > In the DB I have a row MSL_No and the contents is: 123456789
> > 
> > In my images folder I have an image named 123456789_R13_1.jpg
> > 
> > My goal: get the MSL_No out of the DB and concatenate anything after it 
so
> > I would end up with the whole image name..
> > 
> > I hope this all made sense. :-/
> 
> Is there just one image in the folder that starts with the 9 digit number?
> In that case it's dead simple (untested code):
> 
> <?php
>   function completeImageFilename($prefix)
>   {
>     $matches = glob('images/property_pics/'.$prefix.'*');
>     return $matches[0];
>   }
> 
>   echo '<img src="'.completeImageFilename($row['MSL_No']).'" />';
> ?>
> 
> If you need to extract more than one image filename you should be able to
> modify that pretty easily.

YEOW! LOL I looked at this and I'm very stumped on 1 thing. How in the world 
did you get $prefix to contain the image name without first assigning it to 
$prefix? I understand the rest, but..... Holy smokes, that's blown my mind. :-/

-- 
Regards
David M.

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