Evil code

evil.php

<?php

class PHPTokenizer_Tokenizer_PHP53To536 extends PHPTokenizer_Tokenizer_Base
{
    public function tokenize($code) {
        @$resetErrorMsg;
        $tokens = @token_get_all($code);
        $error = error_get_last();

        try {
            $this->checkError($error['message']);

            $count = count($tokens);
            for ($i = 0; $i < $count; ++$i) {
                if (T_HALT_COMPILER === $tokens[$i][0]) {
                    $needTokens = 3;
                    for (; $i < $count; ++$i) {
                        if (!isset(self::$dropTokens[$tokens[$i][0]]) && !--$needTokens) {
                            $tokens = array_slice($tokens, 0, $i);

                            $rest = '';
                            for (; $i < $count; ++$i) {
                                if (isset($tokens[$i][1])) {
                                    $rest .= $tokens[$i][1];
                                } else {
                                    $rest .= $tokens[$i];
                                }
                            }
                            if ('' !== $rest) {
                                $tokens[] = array(T_INLINE_HTML, $rest, -1); // TODO: -1
                            }
                        }
                    }
                }
            }
        } catch (PHPTokenizer_Error $e) {
            // TODO: everything
        }

        return $tokens;
    }
}