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Creating arrays dynamically with a While loop

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  #1  
Old October 18th, 2004, 11:27 PM
Nemozob Nemozob is offline
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Creating arrays dynamically with a While loop
After the first 'for' loop it dumps the contents of the first directory into the $files array, and on the second 'for' run it adds the contents of second directory into the $files array. How can I create a unique array name on the second 'for' loop so that I have arrays that contain the contents of each pass? I thought could make it $files1 and $files2 but doing this: $files.$i[] doesn't work.

PHP Code:
<?php

// assume I already got this array with a readdir, while loop.
$myDirs = array('docs','images');

for ($i=0; $i<=1; $i++) {

    $newDir = opendir($myDirs[$i]);
    $newFiles =  readdir($newDir);

    while ($filename = readdir($newDir)){
        if ($filename != ".." && $filename != "." && $filename != ".DS_Store") {
            $files[] = $filename;
        }
    }
}

?>
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  #2  
Old October 19th, 2004, 01:12 AM
MadCowDzz's Avatar
MadCowDzz MadCowDzz is offline
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have you thought about multiple dimension arrays?

so you could have a structure like $files['dirname']['filename']

then again, I'm not quite sure what you're trying to accomplish... perhaps some clarification?
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Old October 19th, 2004, 09:14 AM
m3rajk m3rajk is offline
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you could try nested loops.
Quote:
Originally Posted by Nemozob
After the first 'for' loop it dumps the contents of the first directory into the $files array, and on the second 'for' run it adds the contents of second directory into the $files array. How can I create a unique array name on the second 'for' loop so that I have arrays that contain the contents of each pass? I thought could make it $files1 and $files2 but doing this: $files.$i[] doesn't work.

PHP Code:
<?php
  
  // assume I already got this array with a readdir, while loop.
  $myDirs = array('docs','images');
  for(j=0;j<numDirs;<j++){
    $fileset=$currentDir.'files'; $fileset=new array[];
for ($i=0; $i<=1; $i++) {
  
      $newDir = opendir($myDirs[$i]);
      $newFiles =  readdir($newDir);
  
      while ($filename = readdir($newDir)){
        if ($filename != ".." && $filename != "." && $filename != ".DS_Store") {
              $files[] = $filename;
          }
      }
  }
  }
  ?>
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  #4  
Old October 21st, 2004, 02:04 PM
Nemozob Nemozob is offline
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creating multiple dimensional array
Quote:
Originally Posted by MadCowDzz
have you thought about multiple dimension arrays?

so you could have a structure like $files['dirname']['filename']

then again, I'm not quite sure what you're trying to accomplish... perhaps some clarification?


Yeah, say I have two directories, 'docs' and 'images'. Right now I'm getting this info but scanning my directory:

PHP Code:
 $dir = opendir('.');
$dirRead =  readdir($dir);

    while (false !== ($dirRead = readdir($dir))) {
        if ($dirRead != ".." && $dirRead != "." && $dirRead != ".DS_Store" && $dirRead != "index.php") {
            $myDirs[] = $dirRead;
        }
    } 


but this produces
$myDirs = array('docs','images');
and I want to get to this...
$myDirs = array('docs'=> array(), 'images' => array());

How do I get there? Later I'll add to those secondary arrays with the filenames. Make sense?
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  #5  
Old October 21st, 2004, 10:58 PM
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MadCowDzz MadCowDzz is offline
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did you check out some of the comments in the PHP Manual for the readdir listing?

I think Rick has a solution you can use...

try the following code the way it is:
PHP Code:
function ls($dir){
    $handle = opendir($dir);
    for(;(false !== ($readdir = readdir($handle)));){
        if($readdir != '.' && $readdir != '..'){
            $path = $dir.'/'.$readdir;
            if(is_dir($path))    
                $output[$readdir] = ls($path);
            if(is_file($path))
                $output[] = $readdir;
        }
    }
    return isset($output)?$output:false;
    closedir($handle);
}

$files = ls('.');
print_r($files['docs']); 
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  #6  
Old October 21st, 2004, 10:59 PM
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Forgot to mention, refer to Rick's post here: http://ca.php.net/readdir
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