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PHP | ip2long() Function

PHP ip2long() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP ip2long() Function.

The built-in PHP ip2long() function is used to convert IPv4 address to long integer.


Following below is the syntax to use this function -

int ip2long ( string $ip_address )

Parameter Details

Sr.NoParameters & Description


It contains an IP address.

Return Value

This built-in function returns a long integer on success, else it displays a message as IP address is invalid.


Try out the following example below -

   $ip = gethostbyname('www.webdesigntutorialz.com');
   $out = "The following URLs are equivalent:
   $out .= 'http://www.webdesigntutorialz.com/, http://' . $ip . '/, 
      and http://' . sprintf("%u", ip2long($ip)) . "/
   echo $out;


When the above code is executed, it will produce the following result below -

The following URLs are equivalent:
http://www.webdesigntutorialz.com/,, and http://1209359112/

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP long2ip() Function.

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