PHP | long2ip() Function Last Updated : 05 Sep, 2019 Summarize Comments Improve Suggest changes Share Like Article Like Report The long2ip() function is an inbuilt function in PHP which converts long integer into corresponding IPv4 address in string format. Syntax: string long2ip( int $ip_in_long ) Parameters: This function accepts single parameter as mentioned above and described below: $ip_in_long: It is required parameter. It specifies a long integer that represents an IP address. Return Value: This function returns an IP address in string format. Note: This function is available on PHP 4.0.0 and newer versions. Below programs illustrate the long2ip() function in PHP: Program 1: php <?php // Use long2ip() function to converts // long integer address into a string // format echo(long2ip(344294967296)); ?> Output: 41.148.72.0 Program 2: php <?php // Store the long integer address in an array $hosts = array( 874081766, 3627733732, 3627734286, 520968740, 2539994370, 2539979077); $out = "List of IP addresses:"; foreach( $hosts as $host ) { $ip = long2ip($host); $hostname = gethostbyaddr($ip); $out .= "<br> https://" . $host . "/ https://" . $ip . "/ https://" . $hostname . "/"; } echo $out; ?> Output: List of IP addresses: https://874081766/ https://52.25.109.230/ https://ec2-52-25-109-230.us-west-2.compute.amazonaws.com/ https://3627733732/ https://216.58.210.228/ https://mrs04s10-in-f228.1e100.net/ https://3627734286/ https://216.58.213.14/ https://lhr25s25-in-f14.1e100.net/ https://520968740/ https://31.13.90.36/ https://edge-star-mini-shv-01-lhr3.facebook.com/ https://2539994370/ https://151.101.61.2/ https://151.101.61.2/ https://2539979077/ https://151.101.1.69/ https://151.101.1.69/ Reference: https://www.php.net/manual/en/function.long2ip.php Comment More infoAdvertise with us Next Article PHP | ip2long() Function G gekcho Follow Improve Article Tags : Web Technologies PHP PHP-function Similar Reads PHP log1p() Function The log1p() is an inbuilt PHP function that returns log(1+number), & when the value of the number is close to zero, then it will compute the way that will provide the accurate result. Syntax: log1p(float $num): floatParameter: This function accepts only a single parameter: num: This parameter sp 1 min read PHP | ip2long() Function The ip2long() function is an inbuilt function in PHP that converts IPv4 address (dotted IP address) into a long integer. Syntax:Â int ip2long( string $ip_address ) Parameters: This function accepts single parameter as mentioned above and described below:Â Â $ip_address: It is required parameter which 2 min read PHP is_long() Function The is_long() function is an inbuilt function in PHP that is used to check whether the given value is a long integer or not. Syntax: bool is_long(mixed $value) Parameters: This function accepts a single parameter $value that holds the value which needs to check for a long integer. Return Value: This 1 min read PHP | gmp_or() Function The gmp_or() is an inbuilt function in PHP which is used to calculate the bitwise OR of two GMP numbers(GNU Multiple Precision : For large numbers). Syntax: gmp_or($num1, $num2) Parameters: This function accepts two GMP numbers, $num1, $num2 as mandatory parameters as shown in the above syntax. Thes 2 min read PHP | pack() Function The pack() function is an inbuilt function in PHP which is used to pack the given parameter into a binary string in a given format. Syntax: pack( $format, $arguments ) Parameters: This function accepts two parameters as mentioned above and described below: $format: It is required parameter. It speci 2 min read PHP | imageflip() Function The imageflip() function is an inbuilt function in PHP which is used to Flip an image horizontally, vertically or both horizontally and vertically using the given mode. Syntax: bool imageflip( $image, $mode ) Parameters: This function accepts two parameters as mentioned above and described below: $i 2 min read Like