diff --git a/htdocs/accountancy/class/bookkeeping.class.php b/htdocs/accountancy/class/bookkeeping.class.php
index 799ebf85a34..52f7a473bed 100644
--- a/htdocs/accountancy/class/bookkeeping.class.php
+++ b/htdocs/accountancy/class/bookkeeping.class.php
@@ -1224,18 +1224,17 @@ class BookKeeping extends CommonObject
 	/**
 	 * Delete bookkepping by piece number
 	 *
-	 * @param int $piecenum peicenum to delete
-	 * @param string $mode Mode
-	 * @return int Result
+	 * @param 	int 	$piecenum 	Piecenum to delete
+	 * @return 	int 				Result
 	 */
-	function deleteMvtNum($piecenum, $mode) {
+	function deleteMvtNum($piecenum) {
 		global $conf;
 
 		$this->db->begin();
 
 		// first check if line not yet in bookkeeping
 		$sql = "DELETE";
-		$sql .= " FROM " . MAIN_DB_PREFIX . $this->table_element. $mode;
+		$sql .= " FROM " . MAIN_DB_PREFIX . $this->table_element;
 		$sql .= " WHERE piece_num = " . $piecenum;
 		$sql .= " AND entity IN (" . getEntity('accountancy') . ")";
 
diff --git a/htdocs/accountancy/journal/bankjournal.php b/htdocs/accountancy/journal/bankjournal.php
index 505e2a9f534..0fbb60c2e2d 100644
--- a/htdocs/accountancy/journal/bankjournal.php
+++ b/htdocs/accountancy/journal/bankjournal.php
@@ -1,6 +1,4 @@
 <?php
-use Stripe\BankAccount;
-
 /* Copyright (C) 2007-2010	Laurent Destailleur	<eldy@users.sourceforge.net>
  * Copyright (C) 2007-2010	Jean Heimburger		<jean@tiaris.info>
  * Copyright (C) 2011		Juanjo Menent		<jmenent@2byte.es>
diff --git a/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php b/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php
index bb59fa93929..4b8978462fb 100644
--- a/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php
+++ b/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php
@@ -48,6 +48,7 @@ class PrestaShopWebservice
 	const PSCOMPATIBLEVERSIONMIN = '1.4.0.0';
 	const PSCOMPATIBLEVERSIONMAX = '1.6.99.99';
 
+
 	/**
 	 * PrestaShopWebservice constructor. Throw an exception when CURL is not installed/activated
 	 * <code>
@@ -79,6 +80,7 @@ class PrestaShopWebservice
 
 	/**
 	 * Take the status code and throw an exception if the server didn't return 200 or 201 code
+	 *
 	 * @param int $status_code Status code of an HTTP return
 	 */
 	protected function checkStatusCode($status_code)
@@ -86,21 +88,32 @@ class PrestaShopWebservice
 		$error_label = 'This call to PrestaShop Web Services failed and returned an HTTP status of %d. That means: %s.';
 		switch($status_code)
 		{
-			case 200:	case 201:	break;
-			case 204: throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'No content'));break;
-			case 400: throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Bad Request'));break;
-			case 401: throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Unauthorized'));break;
-			case 404: throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Not Found'));break;
-			case 405: throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Method Not Allowed'));break;
-			case 500: throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Internal Server Error'));break;
-			default: throw new PrestaShopWebserviceException('This call to PrestaShop Web Services returned an unexpected HTTP status of:' . $status_code);
+			case 200:
+			case 201:
+				break;
+			case 204:
+				throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'No content'));
+			case 400:
+				throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Bad Request'));
+			case 401:
+				throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Unauthorized'));
+			case 404:
+				throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Not Found'));
+			case 405:
+				throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Method Not Allowed'));
+			case 500:
+				throw new PrestaShopWebserviceException(sprintf($error_label, $status_code, 'Internal Server Error'));
+			default:
+				throw new PrestaShopWebserviceException('This call to PrestaShop Web Services returned an unexpected HTTP status of:' . $status_code);
 		}
 	}
+
 	/**
 	 * Handles a CURL request to PrestaShop Webservice. Can throw exception.
-	 * @param string $url Resource name
-	 * @param mixed $curl_params CURL parameters (sent to curl_set_opt)
-	 * @return array status_code, response
+	 *
+	 * @param 	string 	$url 			Resource name
+	 * @param 	mixed 	$curl_params 	CURL parameters (sent to curl_set_opt)
+	 * @return 	array 					status_code, response
 	 */
 	public function executeRequest($url, $curl_params = array())
 	{
@@ -178,11 +191,23 @@ class PrestaShopWebservice
 		return array('status_code' => $status_code, 'response' => $body, 'header' => $header);
 	}
 
+	/**
+	 * Output debug info
+	 *
+	 * @param 	string	$title		Title
+	 * @param 	string	$content	Content
+	 * @return	void
+	 */
 	public function printDebug($title, $content)
 	{
 		echo '<div style="display:table;background:#CCC;font-size:8pt;padding:7px"><h6 style="font-size:9pt;margin:0">'.$title.'</h6><pre>'.htmlentities($content).'</pre></div>';
 	}
 
+	/**
+	 * Return version
+	 *
+	 * @return	string		Version
+	 */
 	public function getVersion()
 	{
 		return $this->version;
@@ -190,8 +215,9 @@ class PrestaShopWebservice
 
 	/**
 	 * Load XML from string. Can throw exception
-	 * @param string $response String from a CURL response
-	 * @return SimpleXMLElement status_code, response
+	 *
+	 * @param 	string 				$response 	String from a CURL response
+	 * @return 	SimpleXMLElement 				status_code, response
 	 */
 	protected function parseXML($response)
 	{
@@ -268,8 +294,8 @@ class PrestaShopWebservice
 	 * }
 	 * ?>
 	 * </code>
-	 * @param array $options Array representing resource to get.
-	 * @return SimpleXMLElement status_code, response
+	 * @param 	array 			$options 	Array representing resource to get.
+	 * @return 	SimpleXMLElement 			status_code, response
 	 */
 	public function get($options)
 	{
@@ -301,8 +327,8 @@ class PrestaShopWebservice
 	/**
  	 * Head method (HEAD) a resource
 	 *
-	 * @param array $options Array representing resource for head request.
-	 * @return SimpleXMLElement status_code, response
+	 * @param 	array 				$options 	Array representing resource for head request.
+	 * @return 	SimpleXMLElement 				status_code, response
 	 */
 	public function head($options)
 	{
@@ -336,7 +362,9 @@ class PrestaShopWebservice
 	 * 'id' => ID of a resource you want to edit,<br>
 	 * 'putXml' => Modified XML string of a resource<br><br>
 	 * Examples are given in the tutorial</p>
-	 * @param array $options Array representing resource to edit.
+	 *
+	 * @param 	array 				$options 	Array representing resource to edit.
+	 * @return	SimpleXMLElement 				status_code, response
 	 */
 	public function edit($options)
 	{
@@ -381,7 +409,8 @@ class PrestaShopWebservice
 	 * }
 	 * ?>
 	 * </code>
-	 * @param array $options Array representing resource to delete.
+	 * @param 	array 		$options 	Array representing resource to delete.
+	 * @return	boolean					true
 	 */
 	public function delete($options)
 	{
@@ -400,8 +429,6 @@ class PrestaShopWebservice
 		self::checkStatusCode($request['status_code']);// check the response validity
 		return true;
 	}
-
-
 }
 
 /**
diff --git a/htdocs/contact/canvas/actions_contactcard_common.class.php b/htdocs/contact/canvas/actions_contactcard_common.class.php
index 3d6b792d99b..b5df91ce210 100644
--- a/htdocs/contact/canvas/actions_contactcard_common.class.php
+++ b/htdocs/contact/canvas/actions_contactcard_common.class.php
@@ -79,18 +79,18 @@ abstract class ActionsContactCardCommon
      */
     function getObject($id)
     {
-    	$ret = $this->getInstanceDao();
+    	/*$ret = $this->getInstanceDao();
 
     	if (is_object($this->object) && method_exists($this->object,'fetch'))
     	{
     		if (! empty($id)) $this->object->fetch($id);
     	}
     	else
-    	{
+    	{*/
     		$object = new Contact($this->db);
     		if (! empty($id)) $object->fetch($id);
             $this->object = $object;
-    	}
+    	//}
     }
 
     /**
diff --git a/htdocs/core/lib/json.lib.php b/htdocs/core/lib/json.lib.php
index 7388ba47806..3d14d035a61 100644
--- a/htdocs/core/lib/json.lib.php
+++ b/htdocs/core/lib/json.lib.php
@@ -19,14 +19,14 @@
 
 /**
  *	    \file       htdocs/core/lib/json.lib.php
- *		\brief      Functions to emulate json function for PHP < 5.3 compatibility
+ *		\brief      Functions to emulate json function when there were not activated
  * 		\ingroup	core
  */
 
 if (! function_exists('json_encode'))
 {
 	/**
-	 * Implement json_encode for PHP that does not support it
+	 * Implement json_encode for PHP that does not have module enabled.
 	 *
 	 * @param	mixed	$elements		PHP Object to json encode
 	 * @return 	string					Json encoded string
@@ -42,12 +42,11 @@ if (! function_exists('json_encode'))
  *
  * @param	mixed	$elements		PHP Object to json encode
  * @return 	string					Json encoded string
- * @deprecated PHP >= 5.3 supports native json_encode
  * @see json_encode()
  */
 function dol_json_encode($elements)
 {
-	dol_syslog('dol_json_encode() is deprecated. Please update your code to use native json_encode().', LOG_WARNING);
+	dol_syslog("For better permorfance, enable the native json in your PHP", LOG_WARNING);
 
 	$num=0;
 	if (is_object($elements))	// Count number of properties for an object
diff --git a/htdocs/expensereport/class/expensereport.class.php b/htdocs/expensereport/class/expensereport.class.php
index 0123535ebb1..8c762121c32 100644
--- a/htdocs/expensereport/class/expensereport.class.php
+++ b/htdocs/expensereport/class/expensereport.class.php
@@ -1171,8 +1171,6 @@ class ExpenseReport extends CommonObject
             $this->error=$this->db->lasterror();
             return -1;
         }
-
-        return 0;
     }
 
     /**