diff --git a/build/docker/README.md b/build/docker/README.md
index dc6147ef85533..8fe44662bf535 100644
--- a/build/docker/README.md
+++ b/build/docker/README.md
@@ -1,12 +1,12 @@
-# How to use it ?
+# How to use run Dolibarr with docker ?
 
-This directory is experimental. Scope of its used is not clear and not documented.
-If you are looking for a process to run Dolibarr as an official Docker image, you can find it on https://hub.docker.com/r/dolibarr/dolibarr
- 
 
-# For experimental dev - TO REMOVE.
+## For a fast run of a demo of the local version, you can build the docker image from this current repository by running
 
-But if you want to execute the version of Dolibarr that is into this current directory as a docker process, you can do it with this commands.
+
+sudo docker-compose build
+
+sudo -s
 
 export HOST_USER_ID=$(id -u)
 export HOST_GROUP_ID=$(id -g)
@@ -14,4 +14,10 @@ export MYSQL_ROOT_PWD=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 13; echo)
 
 docker-compose up -d
 
-Warning: There is no persistency of data. If you need so, you should use instead the official Docker image that you can find on https://hub.docker.com/r/dolibarr/dolibarr 
+
+Warning: There is no persistency of data. This process is for dev purpose only.
+
+
+## For a more robust or a production usage
+
+If you want to execute an official Docker package, you can find it and read the doc on ihttps://hub.docker.com/r/dolibarr/dolibarr 
diff --git a/build/docker/docker-run.sh b/build/docker/docker-run.sh
index cd2513c298309..c220bec485dca 100755
--- a/build/docker/docker-run.sh
+++ b/build/docker/docker-run.sh
@@ -2,18 +2,26 @@
 # Script used by the Dockerfile.
 # See README.md to know how to create a Dolibarr env with docker
 
+if [ "${PHP_INI_DIR}" == "" ]; then
+	echo
+	echo This script must not be run directly. It is used by the Dockerfile
+	echo See README.md
+	echo
+	exit
+fi
+
 usermod -u "${HOST_USER_ID}" www-data
 groupmod -g "${HOST_GROUP_ID}" www-data
 
 chgrp -hR www-data /var/www/html
 chmod g+rwx /var/www/html/conf
 
-if [ ! -d /var/documents ]; then
-	echo "[docker-run] => create volume directory /var/documents ..."
-	mkdir -p /var/documents
+if [ ! -d /var/www/documents ]; then
+	echo "[docker-run] => create volume directory /var/www/documents ..."
+	mkdir -p /var/www/documents
 fi
-echo "[docker-run] => Set Permission to www-data for /var/documents"
-chown -R www-data:www-data /var/documents
+echo "[docker-run] => Set Permission to www-data for /var/www/documents"
+chown -R www-data:www-data /var/www/documents
 
 echo "[docker-run] => update '${PHP_INI_DIR}/conf.d/dolibarr-php.ini'"
 cat <<EOF > "${PHP_INI_DIR}/conf.d/dolibarr-php.ini"
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 4b4889716038d..ed77ac897d1b7 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -12897,7 +12897,7 @@ function dolGetButtonTitle($label, $helpText = '', $iconClass = 'fa fa-file', $u
  * @param   string $elementType       Element type (Value of $object->element or value of $object->element@$object->module). Example:
  *                                    'action', 'facture', 'project', 'project_task' or
  *                                    'myobject@mymodule' (or old syntax 'mymodule_myobject' like 'project_task')
- * @return  array{module:string,element:string,table_element:string,subelement:string,classpath:string,classfile:string,classname:string,dir_output:string}		array('module'=>, 'classpath'=>, 'element'=>, 'subelement'=>, 'classfile'=>, 'classname'=>, 'dir_output'=>)
+ * @return  array{module:string,element:string,table_element:string,subelement:string,classpath:string,classfile:string,classname:string,dir_output:string,dir_temp:string}		array('module'=>, 'classpath'=>, 'element'=>, 'subelement'=>, 'classfile'=>, 'classname'=>, 'dir_output'=>, 'dir_temp'=>)
  * @see fetchObjectByElement(), getMultidirOutput()
  */
 function getElementProperties($elementType)
diff --git a/htdocs/core/upload_page.php b/htdocs/core/upload_page.php
index fb571c2b99cb2..3d4e0211bd17d 100644
--- a/htdocs/core/upload_page.php
+++ b/htdocs/core/upload_page.php
@@ -91,7 +91,7 @@
 
 	$permissiontoadd = $user->hasRight($module, $permlevel1, 'read');
 	$upload_dir = $dir_temp.'/import';
-	var_dump($upload_dir);
+
 	include DOL_DOCUMENT_ROOT.'/core/actions_linkedfiles.inc.php';
 }
 
@@ -203,6 +203,7 @@
 $maxmin = $maxfilesizearray['maxmin'];
 $maxphptoshow = $maxfilesizearray['maxphptoshow'];
 $maxphptoshowparam = $maxfilesizearray['maxphptoshowparam'];
+$out = '';
 if ($maxmin > 0) {
 	$out .= '<input type="hidden" name="MAX_FILE_SIZE" value="'.($maxmin * 1024).'">';	// MAX_FILE_SIZE must precede the field type=file
 }