Issues (663)

Security Analysis    not enabled

This project does not seem to handle request data directly as such no vulnerable execution paths were found.

  Cross-Site Scripting
Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.
  File Exposure
File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.
  File Manipulation
File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.
  Object Injection
Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.
  Code Injection
Code Injection enables an attacker to execute arbitrary code on the server.
  Response Splitting
Response Splitting can be used to send arbitrary responses.
  File Inclusion
File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.
  Command Injection
Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.
  SQL Injection
SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.
  XPath Injection
XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.
  LDAP Injection
LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.
  Header Injection
  Other Vulnerability
This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.
  Regex Injection
Regex Injection enables an attacker to execute arbitrary code in your PHP process.
  XML Injection
XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.
  Variable Injection
Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.
Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

class/search.php (23 issues)

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1
<?php
2
/**
3
 * @hotel     search object
4
 * @license   http://www.blags.org/
5
 * @created   :2010年06月27日 14时08分
6
 * @copyright 1997-2010 The Martin Group
7
 * @author    Martin <[email protected]>
8
 * */
9
if (!defined("XOOPS_ROOT_PATH")) {
10
    die("XOOPS root path not defined");
11
}
12
13
/**
14
 * Class MartinSearch
15
 */
16
class MartinSearch extends XoopsObject
17
{
18
    public function MartinSearch()
19
    {
20
        /*$this->initVar("city_id", XOBJ_DTYPE_INT, null, false);
21
        $this->initVar("hotel_star", XOBJ_DTYPE_TXTBOX, null, true, 255);
22
        $this->initVar("hotel_name", XOBJ_DTYPE_TXTBOX, null, false, 255);*/
23
    }
24
}
25
26
/**
27
 * Class MartinSearchHandler
28
 */
29
class MartinSearchHandler extends XoopsObjectHandler
30
{
31
    /**
32
     * @return MartinSearch
33
     */
34
    public function create()
35
    {
36
        return new MartinSearch();
37
    }
38
39
    /**
40
     * @get       rows
41
     * @license   http://www.blags.org/
42
     * @created   :2010年06月20日 13时09分
43
     * @copyright 1997-2010 The Martin Group
44
     * @author    Martin <[email protected]>
45
     * @param      $sql
46
     * @param null $key
47
     * @return array
48
     */
49 View Code Duplication
    public function GetRows($sql, $key = null)
0 ignored issues
show
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
50
    {
51
        global $xoopsDB;
52
        $result = $xoopsDB->query($sql);
53
        $rows   = array();
54
        while ($row = $xoopsDB->fetchArray($result)) {
55
            if (is_null($key)) {
56
                $rows[] = $row;
57
            } else {
58
                $rows[$row[$key]] = $row;
59
            }
60
        }
61
62
        return $rows;
63
    }
64
65
    /**
66
     * @search    hotels
67
     * @license   http://www.blags.org/
68
     * @created   :2010年06月27日 19时57分
69
     * @copyright 1997-2010 The Martin Group
70
     * @author    Martin <[email protected]>
71
     * @param $Data
72
     * @return array
73
     */
74
    public function Search($Data)
75
    {
76
        global $hotel_handler, $xoopsModuleConfig;
77
        //var_dump($xoopsModuleConfig);
78
79
        $rows     = array();
80
        $dateTime = strtotime(date('Y-m-d'));
0 ignored issues
show
$dateTime is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
81
        foreach ($Data as $key => $value) {
82
            ${$key} = $value;
83
        }
84
        $city_ids = $this->GetCityIds($hotel_address);
0 ignored issues
show
The variable $hotel_address does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
85
        //var_dump($Data);
86
        $sql = "SELECT h.*,hc.city_name as hotel_city FROM " . $this->db->prefix("martin_hotel") . " h ";
87
        $sql .= "INNER JOIN " . $this->db->prefix("martin_room") . " r ON (h.hotel_id = r.hotel_id) ";
88
        $sql .= "INNER JOIN " . $this->db->prefix("martin_room_price") . " rp ON (r.room_id = rp.room_id) ";
89
        $sql .= "INNER JOIN " . $this->db->prefix("martin_hotel_city") . " hc ON (h.hotel_city = hc.city_id) ";
90
        $sql .= " WHERE 1 = 1 ";
91
        $sql .= (empty($hotel_address) || empty($hotel_ids)) ? "" : $city_ids . " IN h.hotel_city_id ";
0 ignored issues
show
The variable $hotel_ids seems only to be defined at a later point. As such the call to empty() seems to always evaluate to true.

This check marks calls to isset(...) or empty(...) that are found before the variable itself is defined. These will always have the same result.

This is likely the result of code being shifted around. Consider removing these calls.

Loading history...
92
        $sql .= empty($hotel_name) ? "" : "AND h.hotel_name LIKE '%$hotel_name%' ";
0 ignored issues
show
The variable $hotel_name seems to never exist, and therefore empty should always return true. Did you maybe rename this variable?

This check looks for calls to isset(...) or empty() on variables that are yet undefined. These calls will always produce the same result and can be removed.

This is most likely caused by the renaming of a variable or the removal of a function/method parameter.

Loading history...
93
        $sql .= $city_id > 0 ? "AND h.hotel_city IN (SELECT city_id FROM " . $this->db->prefix("martin_hotel_city") . " WHERE city_parentid = $city_id ) " : "";
0 ignored issues
show
The variable $city_id does not exist. Did you mean $city_ids?

This check looks for variables that are accessed but have not been defined. It raises an issue if it finds another variable that has a similar name.

The variable may have been renamed without also renaming all references.

Loading history...
94
        $sql .= $hotel_star > 0 ? "AND h.hotel_star = $hotel_star " : "";
0 ignored issues
show
The variable $hotel_star does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
95
        $sql .= (is_array($price) && $price[0] > 0 && $price[1] > 0) ? "AND rp.room_price >= {$price[0]} AND rp.room_price <= {$price[1]} " : "";
0 ignored issues
show
The variable $price does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
96
        $sql .= (is_array($check_date) && $check_date[0] > 0 && $check_date[1] > 0) ? "AND rp.room_date >= {$check_date[0]} AND rp.room_date <= {$check_date[1]} " : "";
0 ignored issues
show
The variable $check_date does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
97
        $sql .= "GROUP BY h.hotel_id  ";
98
        $sql .= (empty($order) || empty($by)) ? " ORDER BY h.hotel_rank DESC , h.hotel_id DESC " : " ORDER BY $order $by ,h.hotel_rank DESC ";
0 ignored issues
show
The variable $order seems to never exist, and therefore empty should always return true. Did you maybe rename this variable?

This check looks for calls to isset(...) or empty() on variables that are yet undefined. These calls will always produce the same result and can be removed.

This is most likely caused by the renaming of a variable or the removal of a function/method parameter.

Loading history...
The variable $by seems to never exist, and therefore empty should always return true. Did you maybe rename this variable?

This check looks for calls to isset(...) or empty() on variables that are yet undefined. These calls will always produce the same result and can be removed.

This is most likely caused by the renaming of a variable or the removal of a function/method parameter.

Loading history...
The variable $order does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
99
        $rows['count'] = $this->GetCount(str_replace("h.*", "count(h.hotel_id) as count", $sql));
100
        $sql .= "LIMIT $start,{$xoopsModuleConfig['perpage']}";
0 ignored issues
show
The variable $start does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
101
        //echo $sql;
102
103
        $result          = $this->db->query($sql);
104
        $this->hotel_ids = &$hotel_ids;
0 ignored issues
show
The variable $hotel_ids does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
105
        $cityList        = &$hotel_handler->getCityList();
106 View Code Duplication
        while ($row = $this->db->fetchArray($result)) {
0 ignored issues
show
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
107
            $hotel_ids[] = $row['hotel_id'];
108
            $city_ids    = explode(',', $row['hotel_city_id']);
109
            foreach ($city_ids as $id) {
110
                $city_name[] = $cityList[$id];
0 ignored issues
show
Coding Style Comprehensibility introduced by
$city_name was never initialized. Although not strictly required by PHP, it is generally a good practice to add $city_name = array(); before regardless.

Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.

Let’s take a look at an example:

foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}

As you can see in this example, the array $myArray is initialized the first time when the foreach loop is entered. You can also see that the value of the bar key is only written conditionally; thus, its value might result from a previous iteration.

This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.

Loading history...
111
            }
112
            $row['city_name']    = implode('、', $city_name);
0 ignored issues
show
The variable $city_name does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
113
            $row['hotel_image']  = unserialize($row['hotel_image']);
114
            $row['hotel_google'] = unserialize(unserialize($row['hotel_google']));
115
            //var_dump($row['hotel_google']);
116
            $rows[] = $row;
117
            unset($city_name);
118
        }
119
120
        //$rows = $this->GetRows($sql,'hotel_id');
121
        return $rows;
122
    }
123
124
    /**
125
     * @get       search count
126
     * @license   http://www.blags.org/
127
     * @created   :2010年06月27日 19时57分
128
     * @copyright 1997-2010 The Martin Group
129
     * @author    Martin <[email protected]>
130
     * @param $sql
131
     * @return int
132
     */
133
    public function GetCount($sql)
134
    {
135
        if (empty($sql)) {
136
            return $sql;
137
        }
138
        $count  = 0;
139
        $result = $this->db->query($sql);
140
        while ($this->db->fetchArray($result)) {
141
            $count++;
142
        }
143
144
        return $count;
145
    }
146
147
    /**
148
     * @get       city ids
149
     * @license   http://www.blags.org/
150
     * @created   :2010年06月27日 14时08分
151
     * @copyright 1997-2010 The Martin Group
152
     * @author    Martin <[email protected]>
153
     * @param $city_name
154
     * @return null|string
155
     */
156
    public function GetCityIds($city_name)
157
    {
158
        global $xoopsDB;
159
        $sql    = "SELECT city_id FROM " . $xoopsDB->prefix("martin_hotel_city") . " WHERE city_name LIKE '%$city_name%'";
160
        $result = $xoopsDB->query($sql);
161
        while ($city_id = $xoopsDB->fetchArray($result)) {
162
            $city_ids[] = $city_id['city_id'];
0 ignored issues
show
Coding Style Comprehensibility introduced by
$city_ids was never initialized. Although not strictly required by PHP, it is generally a good practice to add $city_ids = array(); before regardless.

Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.

Let’s take a look at an example:

foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}

As you can see in this example, the array $myArray is initialized the first time when the foreach loop is entered. You can also see that the value of the bar key is only written conditionally; thus, its value might result from a previous iteration.

This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.

Loading history...
163
        }
164
165
        return is_array($city_ids) ? implode(',', $city_ids) : null;
0 ignored issues
show
The variable $city_ids does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
166
    }
167
168
    /**
169
     * get hotel rooms
170
     * @access    public
171
     * @param $room_date
172
     * @copyright 1997-2010 The Martin Group
173
     * @author    Martin <[email protected]>
174
     * @created   time :2010-06-25 15:27:34
175
     */
176
    public function GethotelRooms($room_date)
0 ignored issues
show
The return type could not be reliably inferred; please add a @return annotation.

Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a @return annotation as described here.

Loading history...
177
    {
178
        if (empty($this->hotel_ids)) {
179
            return $this->hotel_ids;
180
        }
181
        $sql = "SELECT r.*,rt.room_type_info,rp.room_is_today_special,rp.room_date,
182
            GROUP_CONCAT(room_price) as room_prices,GROUP_CONCAT(room_date) as room_dates,
183
            round(avg(rp.room_price),2) as room_price,round(avg(rp.room_advisory_range_small),2) as room_advisory_range_small,
184
            round(avg(rp.room_advisory_range_max),2) as room_advisory_range_max,round(avg(rp.room_sented_coupon),2) as room_sented_coupon
185
            FROM " . $this->db->prefix("martin_room") . " r INNER JOIN " . $this->db->prefix("martin_room_type") . " rt ON (r.room_type_id = rt.room_type_id)
186
            INNER JOIN " . $this->db->prefix("martin_room_price") . " rp ON (rp.room_id = r.room_id)
187
            WHERE r.hotel_id IN (" . implode(",", $this->hotel_ids) . ") ";
188
        $sql .= ($room_date[0] > 0 && $room_date[1] > 0) ? "AND rp.room_date >= {$room_date[0]} AND rp.room_price <= {$room_date[1]} " : " ";
189
        $sql .= "GROUP BY r.room_id";
190
        $rows   = array();
191
        $result = $this->db->query($sql);
192
        while ($row = $this->db->fetchArray($result)) {
193
            $room_dates         = array();
0 ignored issues
show
$room_dates is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
194
            $row['room_prices'] = explode(",", $row['room_prices']);
195
            $row['room_dates']  = explode(",", $row['room_dates']);
196
            foreach ($row['room_prices'] as $key => $room_price) {
197
                $d = $row['room_dates'][$key];
198
                if ($d >= $room_date[0] && $d < $room_date[1]) {
199
                    $room_prices[] = array('date' => date('Y-m-d', $d), 'price' => $room_price);
0 ignored issues
show
Coding Style Comprehensibility introduced by
$room_prices was never initialized. Although not strictly required by PHP, it is generally a good practice to add $room_prices = array(); before regardless.

Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.

Let’s take a look at an example:

foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}

As you can see in this example, the array $myArray is initialized the first time when the foreach loop is entered. You can also see that the value of the bar key is only written conditionally; thus, its value might result from a previous iteration.

This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.

Loading history...
200
                }
201
            }
202
            unset($row['room_prices'], $row['room_dates']);
203
            $row['room_prices']       = $room_prices;
0 ignored issues
show
The variable $room_prices does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
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            $row['room_date']         = date('Y-m-d', $row['room_date']);
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            $rows[$row['hotel_id']][] = $row;
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            unset($row, $room_prices);
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        }
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        return $rows;
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    }
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    /**
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     * @get       city name
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     * @method:
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     * @license   http://www.blags.org/
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     * @created   :2010年06月27日 19时57分
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     * @copyright 1997-2010 The Martin Group
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     * @author    Martin <[email protected]>
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     * @param $city_id
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     * @return null
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     */
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    public function GetCityName($city_id)
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    {
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        if (empty($city_id)) {
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            return $city_id;
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        }
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        $sql = "SELECT city_name FROM " . $this->db->prefix("martin_hotel_city") . " WHERE city_id = $city_id";
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        $row = $this->db->fetchRow($this->db->query($sql));
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        return isset($row[0]) ? $row[0] : null;
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    }
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}
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