class ExecutableFileSniff

class ExecutableFileSniff implements Sniff {
    
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register() {
        return [
            T_OPEN_TAG,
            T_OPEN_TAG_WITH_ECHO,
        ];
    }
    
    //end register()
    
    /**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token in the
     *                                               stack passed in $tokens.
     *
     * @return int
     */
    public function process(File $phpcsFile, $stackPtr) {
        $filename = $phpcsFile->getFilename();
        if ($filename !== 'STDIN') {
            $perms = fileperms($phpcsFile->getFilename());
            if (($perms & 0x40) !== 0 || ($perms & 0x8) !== 0 || ($perms & 0x1) !== 0) {
                $error = 'A PHP file should not be executable; found file permissions set to %s';
                $data = [
                    substr(sprintf('%o', $perms), -4),
                ];
                $phpcsFile->addError($error, 0, 'Executable', $data);
            }
        }
        // Ignore the rest of the file.
        return $phpcsFile->numTokens;
    }
    
    //end process()

}