| 58 | | * @param string protocol |
| 59 | | * @return boolean |
| 60 | | */ |
| 61 | | public static function url($url, $scheme = 'http') |
| 62 | | { |
| 63 | | // Scheme is always lowercase |
| 64 | | $scheme = strtolower($scheme); |
| 65 | | |
| 66 | | // Disable error reporting |
| 67 | | $ER = error_reporting(0); |
| 68 | | |
| 69 | | // Use parse_url to validate the URL |
| 70 | | $url = parse_url($url); |
| 71 | | |
| 72 | | // Restore error reporting |
| 73 | | error_reporting($ER); |
| 74 | | |
| 75 | | // If the boolean check returns TRUE, return FALSE, and vice versa |
| 76 | | return ! (empty($url['host']) OR empty($url['scheme']) OR $url['scheme'] !== $scheme); |
| | 58 | * @return boolean |
| | 59 | */ |
| | 60 | public static function url($url) |
| | 61 | { |
| | 62 | return (bool) filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_HOST_REQUIRED); |
| 83 | | * @return boolean |
| 84 | | */ |
| 85 | | public static function ip($ip) |
| 86 | | { |
| 87 | | if ( ! preg_match('/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/D', $ip)) |
| 88 | | return FALSE; |
| 89 | | |
| 90 | | $octets = explode('.', $ip); |
| 91 | | |
| 92 | | for ($i = 1; $i < 5; $i++) |
| 93 | | { |
| 94 | | $octet = (int) $octets[($i-1)]; |
| 95 | | if ($i === 1) |
| 96 | | { |
| 97 | | if ($octet > 223 OR $octet < 1) |
| 98 | | return FALSE; |
| 99 | | } |
| 100 | | elseif ($i === 4) |
| 101 | | { |
| 102 | | if ($octet < 1) |
| 103 | | return FALSE; |
| 104 | | } |
| 105 | | else |
| 106 | | { |
| 107 | | if ($octet > 254) |
| 108 | | return FALSE; |
| 109 | | } |
| 110 | | } |
| 111 | | |
| 112 | | return TRUE; |
| | 69 | * @param boolean allow IPv6 addresses |
| | 70 | * @return boolean |
| | 71 | */ |
| | 72 | public static function ip($ip, $ipv6 = FALSE) |
| | 73 | { |
| | 74 | // Do not allow private and reserved range IPs |
| | 75 | $flags = FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE; |
| | 76 | |
| | 77 | if ($ipv6 === TRUE) |
| | 78 | { |
| | 79 | return (bool) filter_var($ip, FILTER_VALIDATE_IP, $flags); |
| | 80 | } |
| | 81 | else |
| | 82 | { |
| | 83 | return (bool) filter_var($ip, FILTER_VALIDATE_IP, $flags | FILTER_FLAG_IPV4); |
| | 84 | } |