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

(PHP 4, PHP 5, PHP 7) Get protocol number associated with protocol name

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Return a string describing a socket error

(PECL geoip >= 1.1.0) Get the second level domain name

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Sends data to a connected socket

(PHP 4, PHP 5, PHP 7) Decodes URL-encoded string

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Opens a socket on port to accept connections

(PECL geoip >= 0.2.0) Get the country code and region

(PECL geoip >= 1.0.1) Determine if GeoIP Database is available

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