Babelfish is a file programming language detector based on github/linguist and src-d/enry.
$source_file = new ContentFile('Babelfish.php', \file_get_contents(__DIR__ . '/src/Babelfish/Babelfish.php'));
$language = Babelfish::getWithDefaultStrategies()->getLanguage($source_file);
if ($language !== null) {
echo 'Language detected: ' . $language->getName();
}The language is determined by using an ordered set of strategies. Each strategy will either identify the precise language or reduce the number of likely languages for the next strategy. The default set of strategies is:
- Vim or Emacs modeline
- commonly used filename
- shell shebang
- file extension
- XML header
- heuristics
- naïve Bayesian classification
See also How Linguist works.