# ob_implicit_flush

(PHP 4, PHP 5, PHP 7)

ob_implicit_flush — Turn implicit flush on/off

### Description

ob_implicit_flush ([ int `$flag` = 1 ] ) : void

ob_implicit_flush() will turn implicit flushing on or off. Implicit flushing will result in a flush operation after every output call, so that explicit calls to flush() will no longer be needed.

### Parameters

`flag`

  `1` to turn implicit flushing on, `0` otherwise.

### Return Values

No value is returned.

### See Also

- flush() - Flush system output buffer
- ob_start() - Turn on output buffering
- ob_end_flush() - Flush (send) the output buffer and turn off output buffering