laravel - All artisan commands fail to run. Including php artisan list -

i'm getting no output php artisan.

i have checked laravel logs , php logs. i'm getting no errors fails silently.

i added dumps artisan file , show on console except when try 1 after bit of code.

$status = $kernel->handle( $input = new symfony\component\console\input\argvinput, new symfony\component\console\output\consoleoutput ); 

i'm running l5.0 on php 5.4.41

any idea whats going on here?

have tried running composer update , re-checking commands? should :)