(PHP 4 >= 4.2.0, PHP 5, PHP 7) Flush (send) the output buffer

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Reset URL rewriter values

(PHP 4, PHP 5, PHP 7) Turn implicit flush on/off

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Return the length of the output buffer

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Clean (erase) the output buffer

(PHP 4, PHP 5, PHP 7) Flush system output buffer

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Get status of output buffers

(PHP 4, PHP 5, PHP 7) Flush (send) the output buffer and turn off output buffering

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Add URL rewriter values

(PHP 4, PHP 5, PHP 7) Return the contents of the output buffer