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15 years ago
This code renames all  files and folders in a specific directory to lower case: 

<?php
$path = "my_doc";

function getDirectory( $path = '.', $level = 0 ){

    $ignore = array( 'cgi-bin', '.', '..' );

    $dh = @opendir( $path );
    
    while( false !== ( $file = readdir( $dh ) ) )
    {
        if( !in_array( $file, $ignore ) )
        {
            $spaces = str_repeat( '&nbsp;', ( $level * 4 ) );
            if( is_dir( "$path/$file" ) )
            {
                echo "<strong>$spaces $file</strong><br />";
                rename($path."\\".$file, strtolower($path."\\".$file));
                getDirectory( "$path/$file", ($level+1) );
                
            } 
            else {
                echo "$spaces $file<br />";
                rename($path."\\".$file, strtolower($path."\\".$file));
            }
        }   
    }
    closedir( $dh );
} 

getDirectory( $path , 0 )

?>
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