| --TEST-- | |
| Test basic functionality of flush() | |
| --FILE-- | |
| <?php | |
| /* | |
| * Function is implemented in ext/standard/basic_functions.c. | |
| */ | |
| // Verify return type | |
| var_dump(flush()); | |
| // Ensure user buffers are not flushed by flush() | |
| ob_start(); | |
| echo "Inside a user buffer\n"; | |
| flush(); | |
| ob_end_clean(); | |
| echo "Outside of any user buffers\n"; | |
| var_dump(flush()); | |
| ?> | |
| --EXPECT-- | |
| NULL | |
| Outside of any user buffers | |
| NULL | |