Wrong usage of stream_isatty(), fstat() used without checking whether the function is available

[jakubmisek]

seems the line 94 makes use of stream_isatty which will always return false (because of the condition at 89). Also, it lacks check if the function exists causes a fatal error on PHP's without the stream support.

environment/src/Console.php

Lines 89 to 95 in c39c1db

	if (\function_exists('stream_isatty') && @\stream_isatty($fileDescriptor)) {
	return true;
	}
	// Check if formatted mode is S_IFCHR
	if (\function_exists('fstat') && @\stream_isatty($fileDescriptor)) {
	$stat = @\fstat(\STDOUT);