How to count number of jpg files in a folder

[thyscorpion]

Hi  :) i am a intermediate guy in PHP.. wanted to ask a simple thing..

I am making a personal site and am sick of manually giving links to each image in my gallery.. >:(

can i firstly, come to know the number of jpg files in a dir.?
secondly, can i pick up each's name one by one? (to use it in the href tag)
???

Please help. :'(

[Daniel0]

[code]<?php
$dh = readdir("the_dir");
while($item = readdir($dh))
{
$var = explode('.',$item);
if(is_file($item) && $var[count($var)-1]=='jpg')
{
echo "{$item}\n";
}
}
closedir($dh);
?>[/code]

[thyscorpion]

[quote author=Daniel0 link=topic=111982.msg454177#msg454177 date=1161239240]
[code]<?php
$dh = readdir("the_dir");
while($item = readdir($dh))
{
$var = explode('.',$item);
if(is_file($item) && $var[count($var)-1]=='jpg')
{
echo "{$item}\n";
}
}
closedir($dh);
?>[/code]
[/quote]
Hi thanks.. when i use the code. it gives an error as follows:
------
Parse error: parse error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting ']' in
---------
it's refering to the line : if(is_file($item) && $var[count($var)-1]=='jpg')

[Daniel0]

Sorry, fixed code: [code]<?php
$dh = opendir("the_dir");
while($item = readdir($dh))
{
$var = explode('.',$item);
if(is_file($item) && $var[count($var)-1]=='jpg')
{
echo "{$item}\n";
}
}
closedir($dh);
?>[/code]

[thyscorpion]

hey sorry to bother you again!.. it still didnt work. giving the same error. same line.

am using PHP 4 if that helps..

(thou i laughed seeing the small correction u made. i am also a programmer but of C++/java etc.. ... )

[Daniel0]

Odd. It is correct syntax. Try this then: [code]<?php
$dh = opendir("the_dir");
while($item = readdir($dh))
{
if(is_file($item) && $var[count($var)-1]=='jpg')
{
$var = explode('.',$item);
$count = count($var);
$extension = $var[$count-1];
if($extension == 'jpg')
echo "{$item}\n";
}
}
}
closedir($dh);
?>[/code]

[thyscorpion]

[quote author=Daniel0 link=topic=111982.msg454189#msg454189 date=1161240865]
Sorry, fixed code: [code]<?php
$dh = opendir("the_dir");
while($item = readdir($dh))
{
$var = explode('.',$item);
if(is_file($item) && $var[count($var)-1]=='jpg')
{
echo "{$item}\n";
}
}
closedir($dh);
?>[/code]
[/quote]

hey got the problem!..
$var[1]=='jpg' is all it needs to check for a jpg.. :-).
thanks a ton.
ciao!.. :-)

[Daniel0]

Nope. Imagine a file called.

something.something.jpg
Using what you said would take something as the extension. There is a function to get the parts of a filename, but I can't remember it.

An alternative way of doing it would be: [code]<?php
foreach(glob("*.txt") as $filename)
{
echo "{$filename}\n";
}
?>[/code]