1--TEST-- 2stream_isatty(): uncastable user stream 3--FILE-- 4<?php 5 6require __DIR__ . '/DummyStreamWrapper.inc'; 7stream_wrapper_register('custom', DummyStreamWrapper::class); 8 9$fp = fopen("custom://myvar", "r+"); 10var_dump(stream_isatty($fp)); 11fclose($fp); 12 13echo "Done"; 14?> 15--EXPECT-- 16bool(false) 17Done 18