PHP code that converts IP addresses and numbers to each other

$ip = "182.18.8.196"; Echo '; echo Ip2long ($IP); echo "@"; echo $ipfu = Ip2int ($IP); echo ' @ '; $ip _n = Bindec (Decbin (Ip2long ($IP))); echo $ip _n; echo ' @ '; Echo Long2ip ($ip _n); echo ' @ '; echo Long2ip ($IPFU);//Digital conversion to IP This function can be used directly to derive the number of IP address conversion. function Myip2long ($IP) { Return Bindec (Decbin (Ip2long ($IP))); } This function and Ip2long are equivalent function Ip2int ($IP) { List ($ip 1, $ip 2, $ip 3, $ip 4) =explode (".", $ip); Return ($ip 1<<24) | ($ip 2<<16) | ($ip 3<<8) | ($ip 4); } Copy Code This can be positive:-1240332092 @-1240332092 @ 3054635204 @ 182.18.8.196 @ 182.18.8.1963054635204 Call the Myip2long function directly to get a positive number. You may be interested in the article: PHP implementation of IP address and digital interchange code

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