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

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

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

(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) Get status of output buffers

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

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

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

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

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