diff --git a/htdocs/core/modules/facture/doc/doc_generic_invoice_odt.modules.php b/htdocs/core/modules/facture/doc/doc_generic_invoice_odt.modules.php
index 77824b75c8c5e..47689938fc13d 100644
--- a/htdocs/core/modules/facture/doc/doc_generic_invoice_odt.modules.php
+++ b/htdocs/core/modules/facture/doc/doc_generic_invoice_odt.modules.php
@@ -44,7 +44,11 @@ class doc_generic_invoice_odt extends ModelePDFFactures
 	 */
 	public $emetteur;	// Objet societe qui emet
 
-	public $phpmin = array(5,4,0);	// Minimum version of PHP required by module
+	/**
+     * @var array() Minimum version of PHP required by module.
+	 * e.g.: PHP ≥ 5.4 = array(5, 4)
+     */
+	public $phpmin = array(5, 4);
 
 	/**
      * Dolibarr version of the loaded document
@@ -60,7 +64,7 @@ class doc_generic_invoice_odt extends ModelePDFFactures
 	 */
 	function __construct($db)
 	{
-		global $conf,$langs,$mysoc;
+		global $conf, $langs, $mysoc;
 
 		// Load translation files required by the page
         $langs->loadLangs(array("main","companies"));
diff --git a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
index 701eee5bc17e2..44e88a64c17be 100644
--- a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
@@ -138,7 +138,7 @@ class pdf_crabe extends ModelePDFFactures
 	 */
 	function __construct($db)
 	{
-		global $conf,$langs,$mysoc;
+		global $conf, $langs, $mysoc;
 
 		// Translations
 		$langs->loadLangs(array("main", "bills"));
diff --git a/htdocs/core/modules/product/doc/doc_generic_product_odt.modules.php b/htdocs/core/modules/product/doc/doc_generic_product_odt.modules.php
index b11e17a662318..4e22f24d9a35d 100644
--- a/htdocs/core/modules/product/doc/doc_generic_product_odt.modules.php
+++ b/htdocs/core/modules/product/doc/doc_generic_product_odt.modules.php
@@ -42,7 +42,11 @@ class doc_generic_product_odt extends ModelePDFProduct
 	 */
 	public $emetteur;
 
-	public $phpmin = array(5,4,0);	// Minimum version of PHP required by module
+	/**
+     * @var array() Minimum version of PHP required by module.
+	 * e.g.: PHP ≥ 5.4 = array(5, 4)
+     */
+	public $phpmin = array(5, 4);
 
 	/**
      * Dolibarr version of the loaded document