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Variable inside function

Posted on 2011-03-17
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Last Modified: 2012-06-21
I have a function which lists files in a directory, the first line of my function is as follows:

function listdirectory($c = 'docs/r0jd38dd', $wcwd = false) {

$c is the directory to list. I now want it so that I can pass the folder to the function as the directory will change depending on the page. For this I've tried:

$bookid = 'docs/' . $_GET['id'];
function listdirectory($c = $bookid, $wcwd = false) {

but it doesn't work, where am I going wrong?

Thanks
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Question by:djfenom
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4 Comments
 
LVL 8

Expert Comment

by:Rik-Legger
ID: 35155893
Functions work like this:

function listdirectory($c, $wcwd) {
    echo $c . '<br />;
    echo $wcwd . '<br />;
}

$bookid = 'docs/' . $_GET['id'];
listdirectory($bookid, false);

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And check the manual for some more explanation:
http://php.net/manual/en/language.functions.php
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Author Comment

by:djfenom
ID: 35155967
Hmmm, this is my full function, how would I put it in?
<?php
  $bookid = 'docs/r0jd' . substr($_GET['id'],-2) .'dd';
  function listdirectory($c = $bookid, $wcwd = false) {

                if($wcwd === false)

                  $wcwd = substr($wcwd = $_SERVER['REQUEST_URI'], 0, strrpos($wcwd, '/') + 1);

 

                echo('<ul class="dirlist">');

                $arr = scandir($c);
	        asort( $arr );
                foreach( $arr as $f ) {
				if ($f != 'User guides') {
                  if(strpos($f, '.') === 0) continue;

 

                  $ff = $c . '/' . $f;

                  $folder = substr($c, 14);

                  if(!is_dir($ff)) {

                                  if ($f == 'Thumbs.db' || $f == 'hr_handbook.zip') {

                                  }

                                  else {

                                                  echo '<li><a href="/docs/?file=' . $folder . '/' . $f . '" class="docdl">' . $f . '</a>';

                                  }

                  }

                  else {

                                        echo '<li><strong>' . $f . '</strong>';

                  }

                  if(is_dir($ff)) listdirectory($ff, $wcwd);

                  echo '</li>';

                }

				}
                echo('</ul>');
  } 

listdirectory();
?>

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LVL 8

Accepted Solution

by:
Rik-Legger earned 500 total points
ID: 35155982
<?php
  
  function listdirectory($c, $wcwd) {

                if($wcwd === false)

                  $wcwd = substr($wcwd = $_SERVER['REQUEST_URI'], 0, strrpos($wcwd, '/') + 1);

 

                echo('<ul class="dirlist">');

                $arr = scandir($c);
	        asort( $arr );
                foreach( $arr as $f ) {
				if ($f != 'User guides') {
                  if(strpos($f, '.') === 0) continue;

 

                  $ff = $c . '/' . $f;

                  $folder = substr($c, 14);

                  if(!is_dir($ff)) {

                                  if ($f == 'Thumbs.db' || $f == 'hr_handbook.zip') {

                                  }

                                  else {

                                                  echo '<li><a href="/docs/?file=' . $folder . '/' . $f . '" class="docdl">' . $f . '</a>';

                                  }

                  }

                  else {

                                        echo '<li><strong>' . $f . '</strong>';

                  }

                  if(is_dir($ff)) listdirectory($ff, $wcwd);

                  echo '</li>';

                }

				}
                echo('</ul>');
  } 

$bookid = 'docs/r0jd' . substr($_GET['id'],-2) .'dd';
listdirectory($bookid, false);
?>

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Author Comment

by:djfenom
ID: 35156007
Perfect, thanks!
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