Php url address email IP Address Verification

Php Tutorial url address email Address Verification
Previously, we used regular expressions to verify email addresses, ip addresses, and url addresses. Now we use three functions: php filter_validate_url, filter_validate_email, and filter_validate_ip.
Filter_validate_url uses the value as the url for verification.
Filter_validate_email uses the value as email for verification.
Filter_validate_ip uses the value as the ip address for verification.

*/

$ Url = "example. php? Name = peter & age = 37 ";

If (! Filter_var ($ url, filter_validate_url, filter_flag_query_required ))
{
Echo "url is not valid ";
}
Else
{
Echo "url is valid ";
}

/*
The filter_validate_email filter uses the value as the email address for verification.
*/

$ Email = "someone @ exa mple.com ";

If (! Filter_var ($ email, filter_validate_email ))
 {
Echo "e-mail is not valid ";
 }
Else
 {
Echo "e-mail is valid ";
 }

/*
The filter_validate_ip filter verifies the value as an ip address.
*/
$ Ip = "192.168.0.1 ";

If (! Filter_var ($ ip, filter_validate_ip ))
 {
Echo "ip is not valid ";
 }
Else
 {
Echo "ip is valid ";
 }
 
// Ipv6
 
$ Ip = "2001: 0db8: 85a3: 08d3: 1319: 8a2e: 0370: 7334 ";

If (! Filter_var ($ ip, filter_validate_ip, filter_flag_ipv6 ))
 {
Echo "ip is not valid ";
 }
Else
 {
Echo "ip is valid ";
 }