Output Control Functions
PHP Manual

ob_flush

Flush (send) the return value of the active output handler

Description

bool ob_flush()

This function calls the output handler (with the PHP_OUTPUT_HANDLER_FLUSH flag), flushes (sends) its return value and discards the contents of the active output buffer.

This function does not turn off the active output buffer like ob_end_flush or ob_get_flush does.

ob_flush will fail without an active output buffer started with the PHP_OUTPUT_HANDLER_FLUSHABLE flag.

Parameters

This function has no parameters.

Return Values

Returns true on success or false on failure.

Errors/Exceptions

If the function fails it generates an E_NOTICE.

See Also

  • ob_start
  • ob_get_contents
  • ob_end_flush
  • ob_get_flush
  • ob_clean