diff --git a/htdocs/commande/card.php b/htdocs/commande/card.php
index c65c53652a8..4010823806c 100644
--- a/htdocs/commande/card.php
+++ b/htdocs/commande/card.php
@@ -3185,13 +3185,13 @@ if ($action == 'create' && $usercancreate) {
 			if ($totalWeight) {
 				print '<tr><td>' . $langs->trans("CalculatedWeight") . '</td>';
 				print '<td class="valuefield">';
-				print showDimensionInBestUnit($totalWeight, 0, "weight", $langs, getDolGlobalInt('MAIN_WEIGHT_DEFAULT_ROUND', -1), isset($conf->global->MAIN_WEIGHT_DEFAULT_UNIT) ? $conf->global->MAIN_WEIGHT_DEFAULT_UNIT : 'no');
+				print showDimensionInBestUnit($totalWeight, 0, "weight", $langs, getDolGlobalInt('MAIN_WEIGHT_DEFAULT_ROUND', -1), getDolGlobalString('MAIN_WEIGHT_DEFAULT_UNIT', 'no'));
 				print '</td></tr>';
 			}
 			if ($totalVolume) {
 				print '<tr><td>' . $langs->trans("CalculatedVolume") . '</td>';
 				print '<td class="valuefield">';
-				print showDimensionInBestUnit($totalVolume, 0, "volume", $langs, getDolGlobalInt('MAIN_VOLUME_DEFAULT_ROUND', -1), isset($conf->global->MAIN_VOLUME_DEFAULT_UNIT) ? $conf->global->MAIN_VOLUME_DEFAULT_UNIT : 'no');
+				print showDimensionInBestUnit($totalVolume, 0, "volume", $langs, getDolGlobalInt('MAIN_VOLUME_DEFAULT_ROUND', -1), getDolGlobalString('MAIN_VOLUME_DEFAULT_UNIT', 'no'));
 				print '</td></tr>';
 			}
 
diff --git a/htdocs/core/datepicker.php b/htdocs/core/datepicker.php
index 12bc0fc9d94..13af821dbc6 100644
--- a/htdocs/core/datepicker.php
+++ b/htdocs/core/datepicker.php
@@ -224,7 +224,7 @@ function displayBox($selectedDate, $month, $year)
 	</tr>
 	<tr class="dpDayNames">
 	<?php
-	$startday = isset($conf->global->MAIN_START_WEEK) ? $conf->global->MAIN_START_WEEK : 1;
+	$startday = getDolGlobalInt('MAIN_START_WEEK', 1);
 	$day_names = array('ShortSunday', 'ShortMonday', 'ShortTuesday', 'ShortWednesday', 'ShortThursday', 'ShortFriday', 'ShortSaturday');
 	for ($i = 0; $i < 7; $i++) {
 		echo '<td width="', (int) (($i + 1) * 100 / 7) - (int) ($i * 100 / 7), '%">', $langs->trans($day_names[($i + $startday) % 7]), '</td>', "\n";
diff --git a/htdocs/core/js/lib_head.js.php b/htdocs/core/js/lib_head.js.php
index 48018bc1f62..2426a738ddc 100644
--- a/htdocs/core/js/lib_head.js.php
+++ b/htdocs/core/js/lib_head.js.php
@@ -203,7 +203,7 @@ jQuery(function($){
 		dayNamesMin: tradDaysMin,
 		weekHeader: '<?php echo $langs->trans("Week"); ?>',
 		dateFormat: '<?php echo $langs->trans("FormatDateShortJQuery"); ?>',	/* Note dd/mm/yy means year on 4 digit in jquery format */
-		firstDay: <?php echo(isset($conf->global->MAIN_START_WEEK) ? $conf->global->MAIN_START_WEEK : '1'); ?>,
+		firstDay: <?php echo getDolGlobalInt('MAIN_START_WEEK', 1); ?>,
 		isRTL: <?php echo($langs->trans("DIRECTION") == 'rtl' ? 'true' : 'false'); ?>,
 		showMonthAfterYear: false,  	/* TODO add specific to country	*/
 		 yearSuffix: ''			/* TODO add specific to country */
diff --git a/htdocs/core/lib/date.lib.php b/htdocs/core/lib/date.lib.php
index 61d21e9abe6..2e3faf20efb 100644
--- a/htdocs/core/lib/date.lib.php
+++ b/htdocs/core/lib/date.lib.php
@@ -674,13 +674,11 @@ function dol_get_first_hour($date, $gm = 'tzserver')
  */
 function dol_get_first_day_week($day, $month, $year, $gm = false)
 {
-	global $conf;
-
 	//$day=2; $month=2; $year=2015;
 	$date = dol_mktime(0, 0, 0, $month, $day, $year, $gm);
 
 	//Checking conf of start week
-	$start_week = (isset($conf->global->MAIN_START_WEEK) ? $conf->global->MAIN_START_WEEK : 1);
+	$start_week = getDolGlobalInt('MAIN_START_WEEK', 1);
 
 	$tmparray = dol_getdate($date, true); // detail of current day
 
diff --git a/htdocs/expedition/card.php b/htdocs/expedition/card.php
index 46c77e0c8f8..2dc153a5f7f 100644
--- a/htdocs/expedition/card.php
+++ b/htdocs/expedition/card.php
@@ -2318,7 +2318,7 @@ if ($action == 'create') {
 		if (!empty($object->trueWeight)) {
 			print ' (' . $langs->trans("SumOfProductWeights") . ': ';
 		}
-		print showDimensionInBestUnit($totalWeight, 0, "weight", $langs, getDolGlobalInt('MAIN_WEIGHT_DEFAULT_ROUND', -1), isset($conf->global->MAIN_WEIGHT_DEFAULT_UNIT) ? $conf->global->MAIN_WEIGHT_DEFAULT_UNIT : 'no');
+		print showDimensionInBestUnit($totalWeight, 0, "weight", $langs, getDolGlobalInt('MAIN_WEIGHT_DEFAULT_ROUND', -1), getDolGlobalString('MAIN_WEIGHT_DEFAULT_UNIT', 'no'));
 		if (!empty($object->trueWeight)) {
 			print ')';
 		}
diff --git a/htdocs/expedition/list.php b/htdocs/expedition/list.php
index 2df3d35c9f0..962a5fb2396 100644
--- a/htdocs/expedition/list.php
+++ b/htdocs/expedition/list.php
@@ -1622,7 +1622,7 @@ while ($i < $imaxinloop) {
 			print '<td class="center">';
 			if (empty($object->trueWeight)) {
 				$tmparray = $object->getTotalWeightVolume();
-				print showDimensionInBestUnit($tmparray['weight'], 0, "weight", $langs, getDolGlobalInt('MAIN_WEIGHT_DEFAULT_ROUND', -1), isset($conf->global->MAIN_WEIGHT_DEFAULT_UNIT) ? $conf->global->MAIN_WEIGHT_DEFAULT_UNIT : 'no');
+				print showDimensionInBestUnit($tmparray['weight'], 0, "weight", $langs, getDolGlobalInt('MAIN_WEIGHT_DEFAULT_ROUND', -1), getDolGlobalString('MAIN_WEIGHT_DEFAULT_UNIT', 'no'));
 				print $form->textwithpicto('', $langs->trans('EstimatedWeight'), 1);
 			} else {
 				print $object->trueWeight;
diff --git a/htdocs/holiday/document.php b/htdocs/holiday/document.php
index bf30730f0d9..88522722419 100644
--- a/htdocs/holiday/document.php
+++ b/htdocs/holiday/document.php
@@ -218,8 +218,8 @@ if ($object->id) {
 	print '<tr>';
 	print '<td>';
 	$htmlhelp = $langs->trans('NbUseDaysCPHelp');
-	$includesaturday = (isset($conf->global->MAIN_NON_WORKING_DAYS_INCLUDE_SATURDAY) ? $conf->global->MAIN_NON_WORKING_DAYS_INCLUDE_SATURDAY : 1);
-	$includesunday   = (isset($conf->global->MAIN_NON_WORKING_DAYS_INCLUDE_SUNDAY) ? $conf->global->MAIN_NON_WORKING_DAYS_INCLUDE_SUNDAY : 1);
+	$includesaturday = getDolGlobalInt('MAIN_NON_WORKING_DAYS_INCLUDE_SATURDAY', 1);
+	$includesunday   = getDolGlobalInt('MAIN_NON_WORKING_DAYS_INCLUDE_SUNDAY', 1);
 	if ($includesaturday) {
 		$htmlhelp .= '<br>'.$langs->trans("DayIsANonWorkingDay", $langs->trans("Saturday"));
 	}
diff --git a/htdocs/hrm/lib/hrm_skillrank.lib.php b/htdocs/hrm/lib/hrm_skillrank.lib.php
index ca220d7d062..e89f43f24da 100644
--- a/htdocs/hrm/lib/hrm_skillrank.lib.php
+++ b/htdocs/hrm/lib/hrm_skillrank.lib.php
@@ -128,7 +128,7 @@ function displayRankInfos($selected_rank, $fk_skill, $inputname = 'TNote', $mode
 	$ret .= '</span>';
 	if (is_array($Lines) && !empty($Lines)) {
 		foreach ($Lines as $line) {
-			$MaxNumberSkill = isset($conf->global->HRM_MAXRANK) ? $conf->global->HRM_MAXRANK : Skill::DEFAULT_MAX_RANK_PER_SKILL;
+			$MaxNumberSkill = getDolGlobalInt('HRM_MAXRANK', Skill::DEFAULT_MAX_RANK_PER_SKILL);
 			if ($line->rankorder > $MaxNumberSkill) {
 				continue;
 			}
diff --git a/htdocs/public/bookcal/index.php b/htdocs/public/bookcal/index.php
index f0738408272..aaf05e537e4 100644
--- a/htdocs/public/bookcal/index.php
+++ b/htdocs/public/bookcal/index.php
@@ -388,7 +388,7 @@ if ($action == 'afteradd') {
 		print '  <td class="center hideonsmartphone">#</td>';
 		$i = 0;
 		while ($i < 7) {
-			$numdayinweek = (($i + (isset($conf->global->MAIN_START_WEEK) ? $conf->global->MAIN_START_WEEK : 1)) % 7);
+			$numdayinweek = (($i + getDolGlobalInt('MAIN_START_WEEK', 1)) % 7);
 			if (!empty($conf->dol_optimize_smallscreen)) {
 				print '  <td class="center bold uppercase tdfordaytitle'.($i == 0 ? ' borderleft' : '').'">';
 				$labelshort = array(0 => 'SundayMin', 1 => 'MondayMin', 2 => 'TuesdayMin', 3 => 'WednesdayMin', 4 => 'ThursdayMin', 5 => 'FridayMin', 6 => 'SaturdayMin');