diff --git a/PasswordHash.php b/PasswordHash.php
index 12958c7..474b2e3 100644
--- a/PasswordHash.php
+++ b/PasswordHash.php
@@ -104,12 +104,12 @@ class PasswordHash {
 	function crypt_private($password, $setting)
 	{
 		$output = '*0';
-		if (substr($setting, 0, 2) == $output)
+		if (substr($setting, 0, 2) === $output)
 			$output = '*1';
 
 		$id = substr($setting, 0, 3);
 		# We use "$P$", phpBB3 uses "$H$" for the same thing
-		if ($id != '$P$' && $id != '$H$')
+		if ($id !== '$P$' && $id !== '$H$')
 			return $output;
 
 		$count_log2 = strpos($this->itoa64, $setting[3]);
@@ -119,7 +119,7 @@ class PasswordHash {
 		$count = 1 << $count_log2;
 
 		$salt = substr($setting, 4, 8);
-		if (strlen($salt) != 8)
+		if (strlen($salt) !== 8)
 			return $output;
 
 		# We're kind of forced to use MD5 here since it's the only
@@ -209,20 +209,20 @@ class PasswordHash {
 	{
 		$random = '';
 
-		if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
+		if (CRYPT_BLOWFISH === 1 && !$this->portable_hashes) {
 			$random = $this->get_random_bytes(16);
 			$hash =
 			    crypt($password, $this->gensalt_blowfish($random));
-			if (strlen($hash) == 60)
+			if (strlen($hash) === 60)
 				return $hash;
 		}
 
-		if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) {
+		if (CRYPT_EXT_DES === 1 && !$this->portable_hashes) {
 			if (strlen($random) < 3)
 				$random = $this->get_random_bytes(3);
 			$hash =
 			    crypt($password, $this->gensalt_extended($random));
-			if (strlen($hash) == 20)
+			if (strlen($hash) === 20)
 				return $hash;
 		}
 
@@ -231,7 +231,7 @@ class PasswordHash {
 		$hash =
 		    $this->crypt_private($password,
 		    $this->gensalt_private($random));
-		if (strlen($hash) == 34)
+		if (strlen($hash) === 34)
 			return $hash;
 
 		# Returning '*' on error is safe here, but would _not_ be safe
@@ -243,10 +243,10 @@ class PasswordHash {
 	function CheckPassword($password, $stored_hash)
 	{
 		$hash = $this->crypt_private($password, $stored_hash);
-		if ($hash[0] == '*')
+		if ($hash[0] === '*')
 			$hash = crypt($password, $stored_hash);
 
-		return $hash == $stored_hash;
+		return $hash === $stored_hash;
 	}
 }
 
diff --git a/ajax/settings.php b/ajax/settings.php
index 3b85780..9a85ca5 100644
--- a/ajax/settings.php
+++ b/ajax/settings.php
@@ -18,7 +18,7 @@ $params = array('sql_host', 'sql_user', 'sql_database', 'sql_password',
         'allow_password_change', 'sql_column_active_invert', 'sql_column_email',
         'mail_sync_mode');
 
-if(isset($_POST['appname']) && $_POST['appname'] == "user_sql")
+if(isset($_POST['appname']) && $_POST['appname'] === "user_sql")
 {
     foreach($params as $param)
     {
diff --git a/templates/settings.php b/templates/settings.php
index 33d4b58..b9b34f2 100644
--- a/templates/settings.php
+++ b/templates/settings.php
@@ -21,7 +21,7 @@ $cfgClass = $ocVersion >= 7 ? 'section' : 'personalblock';
                     <?php 
                         foreach ($db_driver as $driver => $name):
                             echo $_['sql_type'];
-                            if($_['sql_type'] == $driver): ?>
+                            if($_['sql_type'] === $driver): ?>
                                 <option selected="selected" value="<?php echo $driver; ?>"><?php echo $name; ?></option>
                             <?php else: ?>
                                 <option value="<?php echo $driver; ?>"><?php echo $name; ?></option>
@@ -53,7 +53,7 @@ $cfgClass = $ocVersion >= 7 ? 'section' : 'personalblock';
                     <?php 
                         foreach ($crypt_types as $driver => $name):
                             echo $_['crypt_type'];
-                            if($_['crypt_type'] == $driver): ?>
+                            if($_['crypt_type'] === $driver): ?>
                                 <option selected="selected" value="<?php echo $driver; ?>"><?php echo $name; ?></option>
                             <?php else: ?>
                                 <option value="<?php echo $driver; ?>"><?php echo $name; ?></option>
@@ -74,7 +74,7 @@ $cfgClass = $ocVersion >= 7 ? 'section' : 'personalblock';
                     <?php
                     foreach ($mail_modes as $mode => $name):
                         echo $_['mail_sync_mode'];
-                        if($_['mail_sync_mode'] == $mode): ?>
+                        if($_['mail_sync_mode'] === $mode): ?>
                             <option selected="selected" value="<?php echo $mode; ?>"><?php echo $name; ?></option>
                         <?php else: ?>
                             <option value="<?php echo $mode; ?>"><?php echo $name; ?></option>
@@ -89,19 +89,19 @@ $cfgClass = $ocVersion >= 7 ? 'section' : 'personalblock';
         	<table>
         		<tr><td><label for="domain_settings"><?php echo $l -> t('Domain Settings'); ?></label></td><td><table>
         			<tr><td><input type="radio" name="domain_settings" id="domain_none" value="none" <?php
-                    if($_['domain_settings'] == "" || $_['domain_settings'] == "none")
+                    if($_['domain_settings'] === "" || $_['domain_settings'] === "none")
                         echo 'checked="checked"';
                     ?>><?php echo $l->t('No Mapping') ?></td></tr>
         			<tr><td><input type="radio" name="domain_settings" id="domain_server" value="server" <?php
-                    if($_['domain_settings'] == "server")
+                    if($_['domain_settings'] === "server")
                         echo 'checked="checked"';
                     ?>><?php echo $l->t('Append Server Hostname') ?></td><td></td></tr>        			
         			<tr><td><input type="radio" name="domain_settings" id="domain_default" value="default" <?php
-                    if($_['domain_settings'] == "default")
+                    if($_['domain_settings'] === "default")
                         echo 'checked="checked"';
                     ?>><?php echo $l->t('Append Default') ?></td><td><input type="text" id="default_domain" name="default_domain" value="<?php echo $_['default_domain']; ?>" /></td></tr>
         			<tr><td><input type="radio" name="domain_settings" id="domain_mapping" value="mapping" <?php
-                    if($_['domain_settings'] == "mapping")
+                    if($_['domain_settings'] === "mapping")
                         echo 'checked="checked"';
                     ?>><?php echo $l->t('Map Domains') ?></td><td>
         					<table id="domain_map_entries" cellspacing="2" cellpadding="2">
@@ -111,7 +111,7 @@ $cfgClass = $ocVersion >= 7 ? 'section' : 'personalblock';
                                         $maps = explode(",", $_['map_array']);
                                         for($i = 0; $i < count($domains); $i++)
                                         {
-                                            if(trim($domains[$i]) != "" && trim($domains[$i]) != "")
+                                            if(trim($domains[$i]) !== "" && trim($domains[$i]) !== "")
                                                 echo "<tr><td>" . htmlspecialchars($domains[$i]) . "</td><td>" . htmlspecialchars($maps[$i]) . "</td><td><a class=\"deleteLink\" href=\"#\" >delete</a></td></tr>";
                                         }
 									?>
diff --git a/user_sql.php b/user_sql.php
index f3326d8..3043be4 100644
--- a/user_sql.php
+++ b/user_sql.php
@@ -102,7 +102,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         if($this -> sql_column_email === '')
             return false;
         
-        if($this -> mail_sync_mode == 'none')
+        if($this -> mail_sync_mode === 'none')
             return false;
             
         $ocUid = $uid;
@@ -133,11 +133,11 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
                     OCP\Config::setUserValue($ocUid, 'settings', 'email', $newMail);
                 break;
             case 'forcesql':
-                if($currMail != $newMail)
+                if($currMail !== $newMail)
                     OCP\Config::setUserValue($ocUid, 'settings', 'email', $newMail);
                 break;
             case 'forceoc':
-                if(($currMail !== '') && ($currMail != $newMail))
+                if(($currMail !== '') && ($currMail !== $newMail))
                 {
                     $query = "UPDATE $this->sql_table SET $this->sql_column_email = :currMail WHERE $this->sql_column_username = :uid";
                     OC_Log::write('OC_USER_SQL', "Preapring query: $query", OC_Log::DEBUG);
@@ -181,7 +181,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
                     for($i = 0; $i < count($this -> domain_array); $i++)
                     {
                         OC_Log::write('OC_USER_SQL', 'Checking domain in mapping: ' . $this -> domain_array[$i], OC_Log::DEBUG);
-                        if($_SERVER['SERVER_NAME'] == trim($this -> domain_array[$i]))
+                        if($_SERVER['SERVER_NAME'] === trim($this -> domain_array[$i]))
                         {
                             OC_Log::write('OC_USER_SQL', 'Found domain in mapping: ' . $this -> domain_array[$i], OC_Log::DEBUG);
                             $uid .= "@" . trim($this -> map_array[$i]);
@@ -252,7 +252,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
             return false;
         }
         $old_password = $row[$this -> sql_column_password];
-        if($this -> crypt_type == 'joomla2')
+        if($this -> crypt_type === 'joomla2')
         {
             if(!class_exists('PasswordHash'))
                 require_once('PasswordHash.php');
@@ -261,7 +261,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         }         
         // Redmine stores the salt separatedly, this doesn't play nice with the way
         // we check passwords
-        elseif($this -> crypt_type == 'redmine')
+        elseif($this -> crypt_type === 'redmine')
         {
         	$query = "SELECT salt FROM $this->sql_table WHERE $this->sql_column_username =:uid;";
         	$res = $this->db->prepare($query);
@@ -311,7 +311,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         $uid = $this -> doUserDomainMapping($uid);
 
         $query = "SELECT $this->sql_column_username, $this->sql_column_password FROM $this->sql_table WHERE $this->sql_column_username = :uid";
-        if($this -> sql_column_active != '')
+        if($this -> sql_column_active !== '')
             $query .= " AND " .($this->sql_column_active_invert ? "NOT " : "" ).$this->sql_column_active;
         OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
         $result = $this -> db -> prepare($query);
@@ -333,7 +333,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         OC_Log::write('OC_USER_SQL', "Encrypting and checking password", OC_Log::DEBUG);
         // Joomla 2.5.18 switched to phPass, which doesn't play nice with the way
         // we check passwords
-        if($this -> crypt_type == 'joomla2')
+        if($this -> crypt_type === 'joomla2')
         {
             if(!class_exists('PasswordHash'))
                 require_once('PasswordHash.php');
@@ -342,7 +342,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         } 
         // Redmine stores the salt separatedly, this doesn't play nice with the way
         // we check passwords
-        elseif($this -> crypt_type == 'redmine')
+        elseif($this -> crypt_type === 'redmine')
         {
         	$query = "SELECT salt FROM $this->sql_table WHERE $this->sql_column_username =:uid;";
         	$res = $this->db->prepare($query);
@@ -352,10 +352,10 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
 			$salt = $res->fetch();
 			if(!$salt)
 				return false;
-			$ret = sha1($salt['salt'].sha1($password)) == $row[$this->sql_column_password];
+			$ret = sha1($salt['salt'].sha1($password)) === $row[$this->sql_column_password];
         } else
         {
-            $ret = $this -> pacrypt($password, $row[$this -> sql_column_password]) == $row[$this -> sql_column_password];
+            $ret = $this -> pacrypt($password, $row[$this -> sql_column_password]) === $row[$this -> sql_column_password];
         }
         if($ret)
         {
@@ -390,22 +390,22 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         }
         $query = "SELECT $this->sql_column_username FROM $this->sql_table";
         $query .= " WHERE $this->sql_column_username LIKE :search";
-        if($this -> sql_column_active != '')
+        if($this -> sql_column_active !== '')
             $query .= " AND " .($this->sql_column_active_invert ? "NOT " : "" ).$this->sql_column_active;
         $query .= " ORDER BY $this->sql_column_username";
-        if($limit != null)
+        if($limit !== null)
         {
             $limit = intval($limit);
             $query .= " LIMIT $limit";
         }
-        if($offset != null)
+        if($offset !== null)
         {
             $offset = intval($offset);
             $query .= " OFFSET $offset";
         }
         OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
         $result = $this -> db -> prepare($query);
-        if($search != '')
+        if($search !== '')
         {
             $search = "%".$this -> doUserDomainMapping($search."%")."%";
         }
@@ -458,7 +458,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         }
         $uid = $this -> doUserDomainMapping($uid);
         $query = "SELECT $this->sql_column_username FROM $this->sql_table WHERE $this->sql_column_username = :uid";
-        if($this -> sql_column_active != '')
+        if($this -> sql_column_active !== '')
             $query .= " AND " .($this->sql_column_active_invert ? "NOT " : "" ).$this->sql_column_active;
         OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
         $result = $this -> db -> prepare($query);
@@ -503,7 +503,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         }
 
         $query = "SELECT $this->sql_column_displayname FROM $this->sql_table WHERE $this->sql_column_username = :uid";
-        if($this -> sql_column_active != '')
+        if($this -> sql_column_active !== '')
             $query .= " AND " .($this->sql_column_active_invert ? "NOT " : "" ).$this->sql_column_active;
         OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
         $result = $this -> db -> prepare($query);
@@ -562,7 +562,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         $password = "";
         $salt = "";
 
-        if($this -> crypt_type == 'md5crypt')
+        if($this -> crypt_type === 'md5crypt')
         {
             $split_salt = preg_split('/\$/', $pw_db);
             if(isset($split_salt[2]))
@@ -570,14 +570,14 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
                 $salt = $split_salt[2];
             }
             $password = $this -> md5crypt($pw, $salt);
-        } elseif($this -> crypt_type == 'md5')
+        } elseif($this -> crypt_type === 'md5')
         {
             $password = md5($pw);
-        } elseif($this -> crypt_type == 'system')
+        } elseif($this -> crypt_type === 'system')
         {
             // We never generate salts, as user creation is not allowed here
             $password = crypt($pw, $pw_db);
-        } elseif($this -> crypt_type == 'cleartext')
+        } elseif($this -> crypt_type === 'cleartext')
         {
             $password = $pw;
         }
@@ -585,13 +585,13 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         // See
         // https://sourceforge.net/tracker/?func=detail&atid=937966&aid=1793352&group_id=191583
         // this is apparently useful for pam_mysql etc.
-        elseif($this -> crypt_type == 'mysql_encrypt')
+        elseif($this -> crypt_type === 'mysql_encrypt')
         {
             if(!$this -> db_conn)
             {
                 return false;
             }
-            if($pw_db != "")
+            if($pw_db !== "")
             {
                 $salt = substr($pw_db, 0, 2);
                 $query = "SELECT ENCRYPT(:pw, :salt);";
@@ -602,7 +602,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
 
             $result = $this -> db -> prepare($query);
             $result -> bindParam(":pw", $pw);
-            if($pw_db != "")
+            if($pw_db !== "")
                 $result -> bindParam(":salt", $salt);
             if(!$result -> execute())
             {
@@ -614,7 +614,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
                 return false;
             }
             $password = $row[0];
-        } elseif($this -> crypt_type == 'mysql_password')
+        } elseif($this -> crypt_type === 'mysql_password')
         {
             if(!$this -> db_conn)
             {
@@ -637,7 +637,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
         }
 
         // The following is by Frédéric France
-        elseif($this -> crypt_type == 'joomla')
+        elseif($this -> crypt_type === 'joomla')
         {
             $split_salt = preg_split('/:/', $pw_db);
             if(isset($split_salt[1]))
@@ -648,7 +648,7 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
             $password .= ':' . $salt;
 		}
 
-		elseif($this-> crypt_type == 'ssha256')
+		elseif($this-> crypt_type === 'ssha256')
 		{
 			$salted_password = base64_decode(preg_replace('/{SSHA256}/i','',$pw_db));
 			$salt = substr($salted_password,-(strlen($salted_password)-32));
@@ -672,12 +672,12 @@ class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
     {
         $MAGIC = "$1$";
 
-        if($magic == "")
+        if($magic === "")
             $magic = $MAGIC;
-        if($salt == "")
+        if($salt === "")
             $salt = $this -> create_salt();
         $slist = explode("$", $salt);
-        if($slist[0] == "1")
+        if($slist[0] === "1")
             $salt = $slist[1];
 
         $salt = substr($salt, 0, 8);