ここで説明し、これはあまりにもシンボリックリンクの世話をする別のアプローチです。
/**
* Copy a file, or recursively copy a folder and its contents
* @author Aidan Lister <aidan@php.net>
* @version 1.0.1
* @link http://aidanlister.com/2004/04/recursively-copying-directories-in-php/
* @param string $source Source path
* @param string $dest Destination path
* @param int $permissions New folder creation permissions
* @return bool Returns true on success, false on failure
*/
function xcopy($source, $dest, $permissions = 0755)
{
$sourceHash = hashDirectory($source);
// Check for symlinks
if (is_link($source)) {
return symlink(readlink($source), $dest);
}
// Simple copy for a file
if (is_file($source)) {
return copy($source, $dest);
}
// Make destination directory
if (!is_dir($dest)) {
mkdir($dest, $permissions);
}
// Loop through the folder
$dir = dir($source);
while (false !== $entry = $dir->read()) {
// Skip pointers
if ($entry == '.' || $entry == '..') {
continue;
}
// Deep copy directories
if($sourceHash != hashDirectory($source."/".$entry)){
xcopy("$source/$entry", "$dest/$entry", $permissions);
}
}
// Clean up
$dir->close();
return true;
}
// In case of coping a directory inside itself, there is a need to hash check the directory otherwise and infinite loop of coping is generated
function hashDirectory($directory){
if (! is_dir($directory)){ return false; }
$files = array();
$dir = dir($directory);
while (false !== ($file = $dir->read())){
if ($file != '.' and $file != '..') {
if (is_dir($directory . '/' . $file)) { $files[] = hashDirectory($directory . '/' . $file); }
else { $files[] = md5_file($directory . '/' . $file); }
}
}
$dir->close();
return md5(implode('', $files));
}
"old_location/."
は単なるタイプミスでしたか?