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PHP gethostbyaddr () function

Syntax:
gethostbyaddr($ip_address);
Parameter:this function takes one parameter as above and described below:
  • $ip_address : Required. Specifies the IP address whose hostname you want to find. Passed as a string.
Return value:
  • This function returns the hostname on success and the IP address on error.
Notes :
  • This function is available for PHP 4.0.0 and above.
example $host = gethostbyaddr ( "52.25.109.230" ); echo $host ; ?> Output:
ec2-52-25-109-230.us-west-2.compute.amazonaws.com 
Link: https://www.php.net/manual/en/function.gethostbyaddr.php

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