diff --git a/ldap.php b/ldap.php
index 267a78c..1633eb9 100755
--- a/ldap.php
+++ b/ldap.php
@@ -1,59 +1,64 @@
 <?php
 
-function debug($msg) {
+function debug($msg)
+{
         include 'config.php';
         if ($DEBUG)
-                echo $msg."\n";
+                echo $msg . "\n";
 }
-function generateSalt($length=10) {
-  $chars="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+function generateSalt($length = 10)
+{
+        $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
 
-  $string="";
-  for($i=0;$i<$length;$i++) {
-    $string.=substr($chars,rand(0,strlen($chars)-1),1);
-  }
+        $string = "";
+        for ($i = 0; $i < $length; $i++) {
+                $string .= substr($chars, rand(0, strlen($chars) - 1), 1);
+        }
 
-  return $string;
+        return $string;
 }
 
-class User {
-        function __construct(string $user_name, string $first_name, string $last_name, string $email, string $password){
+class User
+{
+        function __construct(string $user_name, string $first_name, string $last_name, string $email, string $password)
+        {
                 $this->user_name = $user_name;
                 $this->name = $first_name;
                 $this->first_name = $first_name;
                 $this->last_name = $last_name;
                 $this->email = $email;
-                $this->user_hash = "{crypt}" . crypt($password,'$6$'.generateSalt(10).'$');
+                $this->user_hash = "{crypt}" . crypt($password, '$6$' . generateSalt(10) . '$');
                 $this->password = $this->user_hash;
         }
 }
 
-function ldap_search_query($query, $filter="cn"){
+function ldap_search_query($query, $filter = "cn")
+{
         include 'config.php';
         $ldap_host = $HOST;
         $ldap_port = $PORT;
         $ldaptree = explode("{},", $BASE_DN)[1];
 
-        $ldap_user = "cn=".$USER.",".join(",", array_slice(explode(",", $ldaptree), 1));
+        $ldap_user = "cn=" . $USER . "," . join(",", array_slice(explode(",", $ldaptree), 1));
         $ldap_pass = $PASSWORD;
 
         //First: Connect to  LDAP Server
-        $connect = ldap_connect( $ldap_host, $ldap_port)
-         or debug(">>Could not connect to LDAP server to add user<<");
+        $connect = ldap_connect($ldap_host, $ldap_port)
+                or debug(">>Could not connect to LDAP server to add user<<");
         ldap_set_option($connect, LDAP_OPT_PROTOCOL_VERSION, 3);
         ldap_set_option($connect, LDAP_OPT_REFERRALS, 0);
 
         //Login to LDAP
         ldap_bind($connect, $ldap_user, $ldap_pass)
-           or debug(">>Could not bind to $ldap_host to add user<<");
+                or debug(">>Could not bind to $ldap_host to add user<<");
 
-        
-        $result = ldap_search($connect,$ldaptree, "(".$filter."=".$query.")") or die ("Error in search query: ".ldap_error($connect));
+
+        $result = ldap_search($connect, $ldaptree, "(" . $filter . "=" . $query . ")") or die("Error in search query: " . ldap_error($connect));
         $data = ldap_get_entries($connect, $result);
         return $data;
 }
 
-function ldap_add_user ($user)
+function ldap_add_user($user)
 {
         include 'config.php';
         $ldap_host = $HOST;
@@ -62,15 +67,15 @@
         $ldaptree = explode("{},", $BASE_DN)[1];
 
 
-        $info["givenName"]=$user->first_name;
-        $info["sn"]=$user->last_name;
-        $info["uid"]=$user->user_name;
+        $info["givenName"] = $user->first_name;
+        $info["sn"] = $user->last_name;
+        $info["uid"] = $user->user_name;
         #$info["homeDirectory"]="/home/";
-        $info["mail"]=$user->email;
-        $info["displayName"]= $user->first_name." ".$user->last_name;
+        $info["mail"] = $user->email;
+        $info["displayName"] = $user->first_name . " " . $user->last_name;
         #$info["departmentNumber"]=$user->id;
-        $info["cn"] =$user->user_name;
-        $info["userPassword"]=$user->user_hash;
+        $info["cn"] = $user->user_name;
+        $info["userPassword"] = $user->user_hash;
         $info["objectclass"][0] = "top";
         $info["objectclass"][1] = "person";
         $info["objectclass"][2] = "inetOrgPerson";
@@ -78,35 +83,72 @@
 
 
 
-        $ldap_user = "cn=".$USER.",".join(",", array_slice(explode(",", $ldaptree), 1));
+        $ldap_user = "cn=" . $USER . "," . join(",", array_slice(explode(",", $ldaptree), 1));
         $ldap_pass = $PASSWORD;
 
         //First: Connect to  LDAP Server
-        $connect = ldap_connect( $ldap_host, $ldap_port)
-         or debug(">>Could not connect to LDAP server to add user<<");
+        $connect = ldap_connect($ldap_host, $ldap_port)
+                or debug(">>Could not connect to LDAP server to add user<<");
         ldap_set_option($connect, LDAP_OPT_PROTOCOL_VERSION, 3);
         ldap_set_option($connect, LDAP_OPT_REFERRALS, 0);
 
         //Login to LDAP
         ldap_bind($connect, $ldap_user, $ldap_pass)
-           or debug(">>Could not bind to $ldap_host to add user<<");
+                or debug(">>Could not bind to $ldap_host to add user<<");
 
         // Adding new user
 
-    $add = ldap_add($connect, $base_dn, $info)
-      or debug(">>Not able to load user <<");
+        $add = ldap_add($connect, $base_dn, $info)
+                or debug(">>Not able to load user <<");
 
         // Close connection
-       ldap_close($connect);
+        ldap_close($connect);
 
-   // Return value of operation
+        // Return value of operation
 
         return $add;
 }
-function ldap_user_count($user){
+function ldap_user_count($user)
+{
         return ldap_search_query($user)["count"];
 }
-function ldap_mail_count($email){
+function ldap_mail_count($email)
+{
         return ldap_search_query($email, "mail")["count"];
 }
-?>
+
+function change_password($email, $new_password)
+{
+        include 'config.php';
+        $ldap_host = $HOST;
+        $ldap_port = $PORT;
+        $ldaptree = explode("{},", $BASE_DN)[1];
+
+        $ldap_user = "cn=" . $USER . "," . join(",", array_slice(explode(",", $ldaptree), 1));
+        $ldap_pass = $PASSWORD;
+
+        //First: Connect to  LDAP Server
+        $connect = ldap_connect($ldap_host, $ldap_port)
+                or debug(">>Could not connect to LDAP server to add user<<");
+        ldap_set_option($connect, LDAP_OPT_PROTOCOL_VERSION, 3);
+        ldap_set_option($connect, LDAP_OPT_REFERRALS, 0);
+
+        //Login to LDAP
+        ldap_bind($connect, $ldap_user, $ldap_pass)
+                or debug(">>Could not bind to $ldap_host to add user<<");
+
+
+        $result = ldap_search($connect, $ldaptree, "(mail=" . $email . ")") or die("Error in search query: " . ldap_error($connect));
+        $data = ldap_get_entries($connect, $result);
+        if (!$data['count'] || !isset($data[0]["dn"]) || empty($data[0]["dn"])) {
+                return false;
+        }
+        $dn = $data[0]["dn"];
+
+        $newEntry = ['userPassword' => "{crypt}" . crypt($new_password, '$6$' . generateSalt(10) . '$')];
+
+        if (ldap_mod_replace($connect, $dn, $newEntry))
+                return true;
+        else
+                return false;
+}