
To join directory and file names in a cross-platform manner you can use the following function.



function join_path()

{

        $num_args = func_num_args();

        $args = func_get_args();

        $path = $args[0];

        

        if( $num_args > 1 )

        {

            for ($i = 1; $i < $num_args; $i++)

            {

                $path .= DIRECTORY_SEPARATOR.$args[$i];

            }

        }

        

        return $path;

}



It should do the following:

$src = join_path( '/foo', 'bar', 'john.jpg' );

echo $src; // On *nix -> /foo/bar/john.jpg



$src = join_path( 'C:\www', 'domain.com', 'foo.jpg' );

echo $src; // On win32 -> C:\\www\\domain.com\\foo.jpg

msh at onliners dot dk
30-Jan-2006 07:49


I would like to present these two simple functions for generating a complete directory listing - as I feel the other examples are to restrictive in terms of usage.



function dirTree($dir) {

    $d = dir($dir);

    while (false !== ($entry = $d->read())) {

        if($entry != '.' && $entry != '..' && is_dir($dir.$entry))

            $arDir[$entry] = dirTree($dir.$entry.'/');

    }

    $d->close();

    return $arDir;

}



function printTree($array, $level=0) {

    foreach($array as $key => $value) {

        echo "<div class='dir' style='width: ".($level*20)."px;'>&nbsp;</div>".$key."<br/>\n";

        if(is_array($value))

            printTree($value, $level+1);

    }

}



Usage is as simple as this:

$dir = "<any directory you like>";

$arDirTree = dirTree($dir);

printTree($arDirTree);



It is easy to add files to the tree also - so enjoy.

Nicolas Merlet - admin(at)merletn.org
22-Jan-2006 11:34


Here is a very similar function to *scandir*, if you are still using PHP4...



This recursive function will return an indexed array containing all directories or files or both (depending on parameters). You can specify the depth you want, as explained below.



<?php



// $path : path to browse

// $maxdepth : how deep to browse (-1=unlimited)

// $mode : "FULL"|"DIRS"|"FILES"

// $d : must not be defined

  

function searchdir ( $path , $maxdepth = -1 , $mode = "FULL" , $d = 0 )

{

   if ( substr ( $path , strlen ( $path ) - 1 ) != '/' ) { $path .= '/' ; }      

   $dirlist = array () ;

   if ( $mode != "FILES" ) { $dirlist[] = $path ; }

   if ( $handle = opendir ( $path ) )

   {

       while ( false !== ( $file = readdir ( $handle ) ) )

       {

           if ( $file != '.' && $file != '..' )

           {

               $file = $path . $file ;

               if ( ! is_dir ( $file ) ) { if ( $mode != "DIRS" ) { $dirlist[] = $file ; } }

               elseif ( $d >=0 && ($d < $maxdepth || $maxdepth < 0) )

               {

                   $result = searchdir ( $file . '/' , $maxdepth , $mode , $d + 1 ) ;

                   $dirlist = array_merge ( $dirlist , $result ) ;

               }

       }

       }

       closedir ( $handle ) ;

   }

   if ( $d == 0 ) { natcasesort ( $dirlist ) ; }

   return ( $dirlist ) ;

}



?>

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