1--TEST-- 2Test ob_implicit_flush() function : check return value (always null). 3--FILE-- 4<?php 5echo "*** Testing ob_implicit_flush() : check return value ***\n"; 6 7var_dump(ob_implicit_flush()); 8var_dump(ob_implicit_flush(true)); 9var_dump(ob_implicit_flush(false)); 10 11echo "Done"; 12?> 13--EXPECT-- 14*** Testing ob_implicit_flush() : check return value *** 15NULL 16NULL 17NULL 18Done 19