根据 IP 判断是否是欧盟国家

application/third_party/ip2location/controllers/index.php

@@ -24,6 +24,25 @@ class Index extends CI_Controller
         echo json_encode($data);
     }
 
+    /**
+     * 根据 IP 判断是否是欧盟国家
+     * http://localhost:8003/index.php/apps/ip2location/index/is_eu_country?ip_address=159.8.126.74
+     */
+    public function is_eu_country() {
+        $european_counties = array('Russia', 'Ukraine', 'France');
+        $ip_address = $this->input->get_post('ip_address');
+        if (empty($ip_address)) {
+            $ip_address = $this->input->ip_address();
+        }
+        $ip_number = $this->Dot2LongIP($ip_address);
+        $country_name = $this->Ip2location_db1_model->get_country_name($ip_number);
+        $is_eu_country = 'false';
+        if (in_array($country_name, $european_counties)) {
+            $is_eu_country = 'true';
+        }
+        echo json_encode($is_eu_country);
+    }
+
     function Dot2LongIP($IPaddr)
     {
         if ($IPaddr == "") {

application/third_party/ip2location/models/ip2location_db1_model.php

@@ -30,4 +30,21 @@ class Ip2location_db1_model extends CI_Model
     }
 
 
+    public function get_country_name($ip_number)
+    {
+        $sql = '
+            SELECT TOP 1 ipdb.country_name
+            FROM   ip2location_db1 ipdb
+            WHERE  ? BETWEEN ipdb.ip_from AND ipdb.ip_to 
+        ';
+        $query = $this->INFO->query($sql, array($ip_number));
+        if ($query->num_rows() > 0) {
+            $row = $query->row();
+            return $row->country_name;
+        } else {
+            return FALSE;
+        }
+    }
+
+
 }