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@ 2014-10-27T20:40:27Z

<?php

$ip = '192.168.0.1';

$octets = explode('.', $ip);

foreach($octets as $key => $octet) {
	$v = 255 - (int)$octet;
	($v + 255 == 255) ? $valid = true : $valid = false;

	echo $v . PHP_EOL;

	if ($valid)
		echo 'valid';
	else
		echo 'invalid';
	
	echo PHP_EOL;
}

var_dump($octets);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
explode: documentation ( source)

preferences:dark modelive preview

39.13 ms | 402 KiB | 5 Q