Month: April 2018

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Is this reliable url validation? PHP Code:     public function valid_url($str)     {         if (empty($str))         {             return FALSE;         }         elseif (preg_match(‘/^(?:([^:]*)\:)?\/\/(.+)$/’, $str, $matches))         {             if (empty($matches[2]))             {                 return FALSE;             }             elseif ( ! in_array(strtolower($matches[1]), array(‘http’, ‘https’), TRUE))             {                 return FALSE;             }             $str = $matches[2];         }         // PHP 7 accepts IPv6 addresses within square brackets as hostnames,         // but it appears that the PR that came in with https://bugs.php.net/bug.php?id=68039         // was never merged into a PHP 5 branch … https://3v4l.org/8PsSN         if (preg_match(‘/^\[([^\]]+)\]/’, $str, $matches) && ! is_php(‘7’) && filter_var($matches[1], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== FALSE)         {             $str = ‘ipv6.host’.substr($str, strlen($matches[1]) + 2);         }         return (filter_var(‘http://’.$str, FILTER_VALIDATE_URL) !== FALSE);     }  It returns true for almost […] …

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