Hi, a getip, there is no original function or method in PHP ... it belongs to its own package ... it is mainly used to get the ip address of the developing client, such as://to get the user IP.

Function getIP() {

If (! Empty ($ _ SERVER[\ "HTTP _ CLIENT _ IP \ "]){

$ CIP = $ _ SERVER[\ " HTTP _ CLIENT _ IP \ "]；

} else if(！ Empty ($ _ server [\ "http _ x _ forwarded _ for \"]) {

$ CIP = $ _ SERVER[\ " HTTP _ X _ FORWARDED _ FOR \ "]；

} else if(！ Empty ($_SERVER [\ "remote _ ADDR \ "]){

$cip = $_SERVER [\ "remote _ addr \"];

} Otherwise {

$ CIP =“”；

}

preg_match ( \"/[\d\。 ]{7， 15}/\ "，$cip，$ CIPS)；

$cip = isset ( $cips [0])？ $cips [0]:' unknown';

unset(CIPS)；

Return to $ cip

}