use compact with add_var_to_front

plugins/fipf_wp_plugin/utils/add_to_front.php

@@ -31,7 +31,14 @@ function add_files_to_front($files_arr) {
 	}
 }
 
+# this function expect an array of key => value
+# with the key being name of the variable, like this :
+#   'my_var' => 'value',
+# simpler way to do it is to use compact when calling the function :
+#   add_var_to_front(compact("var1", "var2", "var3"));
 function add_var_to_front($var_array) {
+	extract($var_array);
+
 	foreach ($var_array as $key => $var)
 	{
 		$js_var  = 'const ' . $key . ' = ';

plugins/fipf_wp_plugin/utils/create_html.php

@@ -1,10 +1,5 @@
 <?php
 
-function template($file) {
-	$template_dir_path = plugin_dir_path(__DIR__).'html/templates/';
-	include($template_dir_path.$file);
-}
-
 # using ob_start() and ob_get_clean()
 # allows to have php expansion inside the html loaded
 # in opposition to the methode file_get_contents()