PHP ip2long() function usage and example

PHP HTTP 　reference manual

The ip2long() function converts a string internet protocol (IPV4) to a long integer.

Syntax

int　ip2long　(　string　$ip_address　)

Definition and usage

It is used to convert an IPv4 address to a long integer.

Return value

　Returns the numeric representation of the IP address after conversion or FALSE if ip_address is invalid.

Parameter

Online example

Try the following example

<?php
　　　$ip　=　gethostbyname('ru.oldtoolbag.com');
　　　$out　=　"The following three URLs are equivalent:"
　　　\n";
　　　
　　　$out　.=　'http://ru.oldtoolbag.com/,　http://'　.　$ip　.　'/　
　　　　　　And　http://'　.　sprintf("眻,　ip2long($ip))　.　"/"
　　　\n";
　　　
　　　echo　$out;
?>

Output result

The following three URLs are equivalent:
http://ru.oldtoolbag.com/,　http://39.107.75.220/,　http://661343196/

PHP HTTP 　reference manual