Detecting FastCGI SAPI using PHP

Question

There is the following issue: I have to detect FastCGI SAPI in order to send off a custom response. For FastCGI it looks like 'Status 404 Not Found' against standard 'HTTP/1.1 404 Not Found'. As far as I know PHP implements FastCGI only as a part of FPM.

So is it right way to detect FastCGI:

     if (preg_match('|fpm|', PHP_SAPI))
         print('FastCGI');

http://stackoverflow.com/questions/609044/how-to-know-for-sure-if-fastcgi-is-being-used-to-run-php-scripts — s.webbandit, Feb 26 '13 at 08:31
Are you sure you need to send a custom response? See [this stackoverflow post](http://stackoverflow.com/questions/8828275/still-necessary-to-use-status-404-not-found-for-fcgi) for more info on HTTP vs Status and FCGI — alldayremix, Feb 26 '13 at 08:35

score 0 · Answer 1 · answered Aug 25 '16 at 18:42

I would use

if (PHP_SAPI === 'fpm-fcgi') {
  print 'FastCGI';
}

If you wanted to detect any cgi/fast-cgi environment I would use

if (preg_match('|cgi|', PHP_SAPI)) {
  print('FastCGI');
}

I avoid regexes just because it tends to make life easier for the person coming after me in three years trying to read the code tracking down some unrelated bug.

Detecting FastCGI SAPI using PHP

1 Answers1