Answers for "filter_var()"

php filter_var name

var_dump(filter_var('[email protected]', FILTER_VALIDATE_EMAIL));
var_dump(filter_var('http://example.com', FILTER_VALIDATE_URL, FILTER_FLAG_PATH_REQUIRED));

filter_var()

<?php
$int = 122;
$min = 1;
$max = 200;

if (filter_var($int, FILTER_VALIDATE_INT, array("options" => array("min_range"=>$min, "max_range"=>$max))) === false) {
  echo("Variable value is not within the legal range");
} else {
  echo("Variable value is within the legal range");
}
?>

filter_var()

<?php
$ip = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334";

if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) {
  echo("$ip is a valid IPv6 address");
} else {

    echo("$ip is not a valid IPv6 address");
}
?>