function to count # of files in a dir?

thekeeneone

Hi All,

first off let me say this site has helped me so much in my PHP quests. 😃

is there a function that counts the number of files in a specified dir?

thanks,

Amy

ucbones

check out [man]readdir()[/man], that should do it, you'll need to play around with it, but it shouldn't be too difficult, write back if you need more help.

ucbones

stuff it...

<?php
function countfiles($pathdir)
  if ($handle = opendir($pathtodir)) {
   while (false !== ($file = readdir($handle))) { 
       if ($file != "." && $file != "..") { 
           $i++;       } 
   }
   closedir($handle); 
  }
return $i;
}
?>

thekeeneone

thank you kindly for your reply. i definitely need to look into that.

now that i am pondering my code, i think i need it to do a little more because i want it to be very portable.

what i am making is a script that displays thumbnails, and when clicked, the page shows only the fullsize image with "next, home, previous" at the bottom

here is the a href tag that is on each image:

i then have this if statement

<?php 

if($pic) {

?>
<center><img src="images/<?php echo "$pic"; ?>.jpg" width=500 height=666>
<?php
$totalpics=7;
$prev=$pic-1;
$next=$pic+1;
?>

to show the images. the problem with this is,

1)if i want to remove an image, say image 3, the "next" and "previous" buttons will not work correctly- they'll be looking for an image that isnt there.

2) i dont like hardcoding total pics in, which is why i asked for the dir count.

i was thinking, a better way to do this would be to read the directory, making each image a part of an array (like images[1] would equal the first image name, etc) and then I can make calls to that instead of having to number everything out. ok, i know this is probably confusing, hell, i am confused. but my question now is, is there a way to read a dir and make an array of all the files in the dir?

thanks!

thekeeneone

nevermind, i followed ur link, i am dumb 😃

thanks sooo much for your help tho. u are a true gentleman (or woman).

thekeeneone

ok... here is my latest problem... right now i get the file list from the folder and display my thumbnails... then if you click, you get the larger image on the whole page (i named the thumbs and the large images the same). My only problem now is, how can i add a "previous" and "next" option on the larger view? Is there a way to use a function that sends what file name I am on and gets the one right before it and the one right after?

here is my code (some is redundant i am sure; i am new at this 🙂 )


<?php 

if($pic) {

?>
<center><img src="images/<?php echo "$pic"; ?>" width=500 height=666>

<a href="pics.php">Home</a>

*** here is where i want the previous & Next buttons****

&nbsp;|&nbsp;
<?php if($next<=$totalpics){ ?>
<a href="?pic=<?php echo "$next";?>">Next</a>
<?php } ?>


</center>


<?php

} else { 

$count=1;
if ($handle = opendir('thumbnails')) {
   while (false !== ($file = readdir($handle))) { 
       if ($file != "." && $file != "..") { 
           ?>
		   <a href="?pic=<?php echo $file; ?>&count=<?php echo $count; ?>"><img src="thumbnails/<?php echo $file; ?>"></a>
		   <?php
		   $count=$count+1;
       } 
   }
   closedir($handle); 
}
?> 

<?php } ?>