Convert Short Tags to open tags (Respect whitespace)

replace.php

<?php 
define('DS', DIRECTORY_SEPARATOR);

/**
 * Recursive glob
 */
function recursive_glob($pattern, $flags = 0) {
    $files = glob($pattern, $flags);

    foreach (glob(dirname($pattern) . DS . '*', GLOB_ONLYDIR|GLOB_NOSORT) as $dir) {
        $files = array_merge(
            $files,
            recursive_glob($dir . DS . basename($pattern), $flags)
        );
    }

    return $files;
}


$files = array_merge(recursive_glob('./*.php'), recursive_glob('./*.ctp'));

// $files = array('./test.php');

foreach ($files as $file) {
    $content = file_get_contents($file);
    $tokens = token_get_all($content);
    $output = '';

    foreach ($tokens as $token) {
        if (is_array($token)) {
            list($index, $code, $line) = $token;

            $white = null;
            preg_match('/^.*?([\s]+)$/', $code, $matches);

            if (count($matches) > 0) {
                $white = $matches[1];
            }

            switch ($index) {
                case T_OPEN_TAG_WITH_ECHO:
                    $output .= '<?php echo' . ($white ? $white : ' ');
                break;

                case T_OPEN_TAG:
                    $output .= '<?php' . ($white ? $white : '');
                break;

                default:
                    $output .= $code;
                break;
            }

        } else {
            $output .= $token;
        }
    }

    file_put_contents($file, $output);

    echo '.';

    // die;
}