Voting

The Note You're Voting On

17 years ago
An other way to recursively walk a directory and it's content, applying a callback to each file.

Exemple: Update the last modification time of each file in a folder

<?php

clearstatcache();

$sourcepath = "C:/WINDOWS/TEMP";

// Replace \ by / and remove the final / if any
$root = ereg_replace( "/$", "", ereg_replace( "[\\]", "/", $sourcepath ));
// Touch all the files from the $root directory
if( false === m_walk_dir( $root, "m_touch_file", true )) {
    echo "'{$root}' is not a valid directory\n";
}

// Walk a directory recursivelly, and apply a callback on each file
function m_walk_dir( $root, $callback, $recursive = true ) {
    $dh = @opendir( $root );
    if( false === $dh ) {
        return false;
    }
    while( $file = readdir( $dh )) {
        if( "." == $file || ".." == $file ){
            continue;
        }
        call_user_func( $callback, "{$root}/{$file}" );
        if( false !== $recursive && is_dir( "{$root}/{$file}" )) {
            m_walk_dir( "{$root}/{$file}", $callback, $recursive );
        }
    }
    closedir( $dh );
    return true;
}

// if the path indicates a file, run touch() on it
function m_touch_file( $path ) {
    echo $path . "\n";
    if( !is_dir( $path )) {
        touch( $path );
    }
}

?>
<< Back to user notes page