PHP inet_ntop() Function

The PHP inet_ntop() function converts a 32bit IPv4 or 128bit IPv6 address into a readable format.

Syntax

inet_ntop(ip)

Parameters

`ip`	`Required.` Specify a 32bit IPv4 or 128bit IPv6 address.

Return Value

Returns a string representation of the address or false on failure.

Example:

The example below shows the usage of inet_ntop() function.

<?php
//storing the address in a variable
$packed_addr = chr(127) . chr(0) . chr(0) . chr(1);
  
//using inet_ntop() function to convert this
//address to a human readable format
$expanded_addr = inet_ntop($packed_addr);
  
//displaying the result
echo $expanded_addr;
?>

The output of the above code will be:

127.0.0.1

Example:

The inet_ntop() function uses a string of size 4 of ASCII characters as the parameter and converts it into the human readable format. Consider the example below:

<?php
//using inet_ntop() function to convert this
//address to a human readable format
echo inet_ntop("[()]")."\n";
echo inet_ntop("9876")."\n";
echo inet_ntop("~*^`")."\n";
echo inet_ntop("ABCD")."\n";
echo inet_ntop("&^%$")."\n";
?>

The output of the above code will be:

91.40.41.93
57.56.55.54
126.42.94.96
65.66.67.68
38.94.37.36

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