Recursively converts short opening tags to standard ones for php files for a given directory

convert-short-tag-to-full-tag

#!/usr/bin/env php
<?php
/*
 * This script recursively converts short opening tags to standard ones for php files,
 * given a directory as an argument
 */

$path = $argv[1];
if (!is_dir($path)) {
    die("Error, $path is not a valid directory" . PHP_EOL);
}

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path));

foreach ($iterator as $path => $file) {
    if ($file->getExtension() == 'php') {
        $content = file_get_contents($file);
        $tokens  = token_get_all($content);
        $output  = '';

        foreach ($tokens as $token) {
            if (is_array($token)) {
                list($index, $code, $line) = $token;
                switch ($index) {
                    case T_OPEN_TAG_WITH_ECHO:
                        $output .= '<?php echo ';
                        break;
                    case T_OPEN_TAG:
                        $output .= '<?php ';
                        break;
                    default:
                        $output .= $code;
                        break;
                }

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

        if (file_put_contents($file, $output)) {
            echo $file . PHP_EOL;
        }
    }
}