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sort an array using timestamp values...

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commun1

commun1

Programmer
May 26, 2004
41
DE
I'd like to sort an array which consists of two entries, a filename (instead of the default increasing key number) and a timestamp of when the file has been created.

my script looks like this:

Code: 
while ($file = readdir ($dir)) { 
    $timestamp = filemtime($file);
    $files[$timestamp] = $file;
}

however the timestamp-value is not applied, instead I get the regular key entries. print_r($files) gives me the following:

Code: 
Array
(
  [0] => filename0.txt
  [1] => filename1.txt
  [2] => filename2.txt
  [3] => filename3.txt

)

but I want to have this:

Code: 
Array
(
  [1111674409] => filename0.txt
  [1106323078] => filename1.txt
  [1110561128] => filename2.txt
  [1107435271] => filename3.txt

)

without doing an multi-dimesional array.
afterwards I'd like it to sort the keys according to its timestamp. suppose I'd net sort($files) then?

thanks in advance.
 
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hi,


what is your operating system?
do you have read access on the files?

pls, do something like:
Code: 
while ($file = readdir ($dir)) {
    $timestamp = filemtime($file);
    print($timestamp.' '.$file.'<BR>);
    $files[$timestamp] = $file;
}

which is the output ?



___
____
 
Upvote 0 Downvote
Hi,

OS is Linux and I do have access on the files.

why do you ask?

the scripts work fine except for the fact I don't get the timestamp info into my array because I'm not aware of the correct syntax, that's all I'm asking for ;-)
 
Upvote 0 Downvote
in some cases the filemtime() could return FALSE.

you have rigth to read the files, but the `http' user ?!
(or the user which runs the apache webserver)



___
____
 
Upvote 0 Downvote
filemtime() returns the timestamp values like it should.

I'm on shared hosting. I created the files using php's fopen()-function, so that's why I have access to 'em.

SAFE_MODE = OFF
 
Upvote 0 Downvote
Have you considered the fact that you need a file system path?
Your directory list routine returns the filename. If you just check the time on the filename it will fail, since no path is prepended.
I am confident that when you prepend the path the timestamps will read correctly.
 
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commun1:
Bumping threads is considered rude in Tek-Tips.


The code you're pasting...are you copying and pasting the code you're running, or are you retyping it? Is the code snippet you've posted part of a larger script, or is it the meat of the code?

This version of your code:
Code: 
<?php
$dir = opendir ('.');

while ($file = readdir ($dir))
{ 
	$timestamp = filemtime($file);
	$files[$timestamp] = $file;
}

print '<html><body><pre>';
print_r($files);
print '</pre></body></html>';
?>

works on my LAMP box. I'm wondering if you have a typo or if some other part of a larger script is messing with the value of $timestamp.


Want the best answers? Ask the best questions!

TANSTAAFL!!
 
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first of all sorry for bumping, will not happen again =)

@DRJ478

the path has been defined in $dir at the beginning of the script which is not shown here.

@sleipnir214

it's just the main part and I copy&pasted it.

the sniplet works fine here too (also LAMP combo), just that it doesn't assign each timestamp value to each filename, so I'd get this when printing the array:

Code: 
Array
(
  [1111674409] => filename0.txt
)

maybe my explanation is simply lacking clarity...
 
Upvote 0 Downvote
If the snippet does not perform a required function, then I'd say the snippet is not working fine.

Does the script I posted associate the timestamps with the filenames on your system?


Want the best answers? Ask the best questions!

TANSTAAFL!!
 
Upvote 0 Downvote
>Does the script I posted associate the timestamps with the filenames on your system?

that's what I'm asking for =)
how can I associate them?


 
Upvote 0 Downvote
yupp!

I was using an rsort($files) afterwards and print_r($files) after that, that was my fault, stupid me ... sometimes I'm just looking in the wrong places...

thanks for your help though, without it I wouldn't have seen the error...

 
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