[SOLVED] geting last files from specific directory

[prakash]

Hi,

 

I have one directory which will contains images having numeric values (say 1.jpg, 2.jpg .......)

I wanted to get the filename of that image which is having highest numeric value within the dir.

If there is 1.jpg, 2.jpg, 3.jpg, 4.jpg the file having highest numeric value will be 4.jpg

 

is there any easy solution for this or how can I do it

 

[947740]

scandir($dir,1);

 

This should result in listing them opposite-alphabetically.

[prakash]

thaks it's working

[947740]

No problem. 

[prakash]

I encounter problems with scandir($dir,1);

actually when I have files like 8.jpg, 9.jpg, 10.jpg, 11.jpg it actually display 9.jpg as a highest value or order.

so how to resolve this issue.

below is my code

 

<?php
$scanDir=scandir('images', 1);
$intFile=$scanDir[0];
print $intFile; // it prints 9.jpg where it should be 11.jpg
?>

[rhodesa]

You could name your files 0001.jpg, 0002.jpg, etc

[prakash]

You could name your files 0001.jpg, 0002.jpg, etc

 

that may be an another option.

but for using that I need the increment and decrement value for next and previous image.

so how could it be possible 0004+1=0005 or 0004-1=0003

[rhodesa]

<?php
  $a = '0004';
  $b = $a + 1; // $b is now 5
  print str_pad($b,4,STR_PAD_LEFT).".jpg";
?>

[rhodesa]

another option is to use a database to store the info

[prakash]

<?php
  $a = '0004';
  $b = $a + 1; // $b is now 5
  print str_pad($b,4,STR_PAD_LEFT).".jpg";
?>

 

mmm just found the mistake from php.net site

str_pad($b, 4, STR_PAD_LEFT).".jpg" should be str_pad($b, 4, "0", STR_PAD_LEFT).".jpg";

 

correct me if I am wrong

and thanks for the help

[rhodesa]

Yeah...I forgot an argument. You got it right.

[prakash]

thanks it solved out my problem

[947740]

Sorry about that.  scandir($dir,1) does it inversely alphabetically, and I forgot that it would do that...