diff --git a/dev/tools/rector/src/Renaming/GlobalToFunction.php b/dev/tools/rector/src/Renaming/GlobalToFunction.php
index 03b797c81b1..656a7d4ff59 100644
--- a/dev/tools/rector/src/Renaming/GlobalToFunction.php
+++ b/dev/tools/rector/src/Renaming/GlobalToFunction.php
@@ -21,10 +21,12 @@ use Rector\Php71\ValueObject\TwoNodeMatch;
 use Symplify\RuleDocGenerator\Exception\PoorDocumentationException;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
 use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+use PhpParser\Node\Expr\BinaryOp\NotEqual;
 use PhpParser\Node\Expr\BinaryOp\Greater;
 use PhpParser\Node\Expr\BinaryOp\GreaterOrEqual;
 use PhpParser\Node\Expr\BinaryOp\Smaller;
 use PhpParser\Node\Expr\BinaryOp\SmallerOrEqual;
+use PhpParser\Node\Expr\BinaryOp\NotIdentical;
 
 /**
  * Class with Rector custom rule to fix code
@@ -55,7 +57,7 @@ class GlobalToFunction extends AbstractRector
 	public function getRuleDefinition(): RuleDefinition
 	{
 		return new RuleDefinition(
-			'Change $conf->global to getDolGlobal',
+			'Change $conf->global to getDolGlobal in context (1) conf->global Operator Value or (2) function(conf->global...)',
 			[new CodeSample(
 				'$conf->global->CONSTANT',
 				'getDolGlobalInt(\'CONSTANT\')'
@@ -70,7 +72,7 @@ class GlobalToFunction extends AbstractRector
 	 */
 	public function getNodeTypes(): array
 	{
-		return [FuncCall::class, Equal::class, Greater::class, GreaterOrEqual::class, Smaller::class, SmallerOrEqual::class, BooleanAnd::class, Concat::class, ArrayDimFetch::class];
+		return [FuncCall::class, Equal::class, NotEqual::class, Greater::class, GreaterOrEqual::class, Smaller::class, SmallerOrEqual::class, NotIdentical::class, BooleanAnd::class, Concat::class, ArrayDimFetch::class];
 	}
 
 	/**
@@ -101,7 +103,7 @@ class GlobalToFunction extends AbstractRector
 
 		if ($node instanceof FuncCall) {
 			$tmpfunctionname = $this->getName($node);
-			if (in_array($tmpfunctionname, array('dol_escape_htmltag', 'make_substitutions', 'min', 'max'))) {
+			if (in_array($tmpfunctionname, array('dol_escape_htmltag', 'make_substitutions', 'min', 'max', 'explode'))) {
 				$args = $node->getArgs();
 				$nbofparam = count($args);
 
@@ -126,6 +128,7 @@ class GlobalToFunction extends AbstractRector
 			}
 			return $node;
 		}
+
 		if ($node instanceof Concat) {
 			if ($this->isGlobalVar($node->left)) {
 				$constName = $this->getConstName($node->left);
@@ -154,6 +157,7 @@ class GlobalToFunction extends AbstractRector
 			}
 			return new Concat($leftConcat, $rightConcat);
 		}
+
 		if ($node instanceof BooleanAnd) {
 			$nodes = $this->resolveTwoNodeMatch($node);
 			if (!isset($nodes)) {
@@ -164,10 +168,16 @@ class GlobalToFunction extends AbstractRector
 			$node = $nodes->getFirstExpr();
 		}
 
+		// Now process all comparison like:
+		// $conf->global->... Operator Value
+
 		$typeofcomparison = '';
 		if ($node instanceof Equal) {
 			$typeofcomparison = 'Equal';
 		}
+		if ($node instanceof NotEqual) {
+			$typeofcomparison = 'NotEqual';
+		}
 		if ($node instanceof Greater) {
 			$typeofcomparison = 'Greater';
 		}
@@ -180,6 +190,10 @@ class GlobalToFunction extends AbstractRector
 		if ($node instanceof SmallerOrEqual) {
 			$typeofcomparison = 'SmallerOrEqual';
 		}
+		if ($node instanceof NotIdentical) {
+			$typeofcomparison = 'NotIdentical';
+			//var_dump($node->left);
+		}
 		if (empty($typeofcomparison)) {
 			return;
 		}
@@ -189,7 +203,8 @@ class GlobalToFunction extends AbstractRector
 		}
 
 		// Test the type after the comparison conf->global->xxx to know the name of function
-		switch ($node->right->getType()) {
+		$typeright = $node->right->getType();
+		switch ($typeright) {
 			case 'Scalar_LNumber':
 				$funcName = 'getDolGlobalInt';
 				break;
@@ -214,6 +229,15 @@ class GlobalToFunction extends AbstractRector
 				$node->right
 			);
 		}
+		if ($typeofcomparison == 'NotEqual') {
+			return new NotEqual(
+				new FuncCall(
+					new Name($funcName),
+					[new Arg($constName)]
+					),
+				$node->right
+				);
+		}
 		if ($typeofcomparison == 'Greater') {
 			return new Greater(
 				new FuncCall(
@@ -250,6 +274,15 @@ class GlobalToFunction extends AbstractRector
 				$node->right
 			);
 		}
+		if ($typeofcomparison == 'NotIdentical') {
+			return new NotIdentical(
+				new FuncCall(
+					new Name($funcName),
+					[new Arg($constName)]
+					),
+				$node->right
+				);
+		}
 	}
 
 	/**
@@ -262,7 +295,7 @@ class GlobalToFunction extends AbstractRector
 	{
 		return $this->binaryOpManipulator->matchFirstAndSecondConditionNode(
 			$booleanAnd,
-			// $conf->global == $value
+			// Function to check if we are in the case $conf->global->... == $value
 			function (Node $node): bool {
 				if (!$node instanceof Equal) {
 					return \false;
diff --git a/htdocs/adherents/admin/member.php b/htdocs/adherents/admin/member.php
index 06416f19039..b78cd367c9d 100644
--- a/htdocs/adherents/admin/member.php
+++ b/htdocs/adherents/admin/member.php
@@ -428,7 +428,7 @@ if (isModEnabled('facture')) {
 	if (isModEnabled("product") || isModEnabled("service")) {
 		print '<tr class="oddeven"><td>'.$langs->trans("ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS").'</td>';
 		print '<td>';
-		$selected = (!getDolGlobalString('ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS') ? '' : $conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS);
+		$selected = getDolGlobalString('ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS');
 		print img_picto('', 'product', 'class="pictofixedwidth"');
 		$form->select_produits($selected, 'ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS', '', 0);
 		print '</td>';
diff --git a/htdocs/adherents/class/adherent.class.php b/htdocs/adherents/class/adherent.class.php
index 294e0c4689d..51af75d9591 100644
--- a/htdocs/adherents/class/adherent.class.php
+++ b/htdocs/adherents/class/adherent.class.php
@@ -1151,7 +1151,6 @@ class Adherent extends CommonObject
 		// Mise a jour
 		$sql = "UPDATE ".MAIN_DB_PREFIX."adherent";
 		$sql .= " SET pass_crypted = '".$this->db->escape($password_crypted)."'";
-		//if (!empty($conf->global->DATABASE_PWD_ENCRYPTED))
 		if ($isencrypted) {
 			$sql .= ", pass = null";
 		} else {
@@ -1921,7 +1920,7 @@ class Adherent extends CommonObject
 					$outputlangs->setDefaultLang($newlang);
 				}
 				// Generate PDF (whatever is option MAIN_DISABLE_PDF_AUTOUPDATE) so we can include it into email
-				//if (empty($conf->global->MAIN_DISABLE_PDF_AUTOUPDATE))
+				//if (!getDolGlobalString('MAIN_DISABLE_PDF_AUTOUPDATE'))
 
 				$invoice->generateDocument($invoice->model_pdf, $outputlangs);
 			}
@@ -2727,7 +2726,7 @@ class Adherent extends CommonObject
 		$keymodified = false;
 
 		// Object classes
-		$info["objectclass"] = explode(',', $conf->global->LDAP_MEMBER_OBJECT_CLASS);
+		$info["objectclass"] = explode(',', getDolGlobalString('LDAP_MEMBER_OBJECT_CLASS'));
 
 		$this->fullname = $this->getFullName($langs);
 
@@ -2752,7 +2751,7 @@ class Adherent extends CommonObject
 				$info[getDolGlobalString($constname)] = $this->$varname;
 
 				// Check if it is the LDAP key and if its value has been changed
-				if (getDolGlobalString('LDAP_KEY_MEMBERS') && $conf->global->LDAP_KEY_MEMBERS == getDolGlobalString($constname)) {
+				if (getDolGlobalString('LDAP_KEY_MEMBERS') && getDolGlobalString('LDAP_KEY_MEMBERS') == getDolGlobalString($constname)) {
 					if (!empty($this->oldcopy) && $this->$varname != $this->oldcopy->$varname) {
 						$keymodified = true; // For check if LDAP key has been modified
 					}
@@ -2821,15 +2820,15 @@ class Adherent extends CommonObject
 			if (getDolGlobalString('LDAP_MEMBER_FIELD_PASSWORD_CRYPTED')) {
 				$info[getDolGlobalString('LDAP_MEMBER_FIELD_PASSWORD_CRYPTED')] = dol_hash($this->pass, 'openldap'); // Create OpenLDAP password (see LDAP_PASSWORD_HASH_TYPE)
 			}
-		} elseif ($conf->global->LDAP_SERVER_PROTOCOLVERSION !== '3') {
+		} elseif (getDolGlobalString('LDAP_SERVER_PROTOCOLVERSION') !== '3') {
 			// Set LDAP password if possible
 			// If ldap key is modified and LDAPv3 we use ldap_rename function for avoid lose encrypt password
-			if (getDolGlobalString('DATABASE_PWD_ENCRYPTED')) {
-				// Just for the default MD5 !
-				if (!getDolGlobalString('MAIN_SECURITY_HASH_ALGO')) {
+			if (getDolGlobalString('DATABASE_PWD_ENCRYPTED')) {	// This should be on on default installation
+				// Just for the case we use old md5 encryption (deprecated, no more used, kept for compatibility)
+				if (!getDolGlobalString('MAIN_SECURITY_HASH_ALGO') || getDolGlobalString('MAIN_SECURITY_HASH_ALGO') == 'md5') {
 					if ($this->pass_indatabase_crypted && getDolGlobalString('LDAP_MEMBER_FIELD_PASSWORD_CRYPTED')) {
 						// Create OpenLDAP MD5 password from Dolibarr MD5 password
-						// Note: This suppose that "pass_indatabase_crypted" is a md5 (guaranted by the previous test if "(empty($conf->global->MAIN_SECURITY_HASH_ALGO))"
+						// Note: This suppose that "pass_indatabase_crypted" is a md5 (this should not happen anymore)"
 						$info[getDolGlobalString('LDAP_MEMBER_FIELD_PASSWORD_CRYPTED')] = dolGetLdapPasswordHash($this->pass_indatabase_crypted, 'md5frommd5');
 					}
 				}
diff --git a/htdocs/adherents/class/adherent_type.class.php b/htdocs/adherents/class/adherent_type.class.php
index c75ec565b35..4832a4242e7 100644
--- a/htdocs/adherents/class/adherent_type.class.php
+++ b/htdocs/adherents/class/adherent_type.class.php
@@ -844,7 +844,7 @@ class AdherentType extends CommonObject
 			$dn = getDolGlobalString('LDAP_KEY_MEMBERS_TYPES') . "=".$info[getDolGlobalString('LDAP_KEY_MEMBERS_TYPES')]."," . getDolGlobalString('LDAP_MEMBER_TYPE_DN');
 		}
 		if ($mode == 1) {
-			$dn = $conf->global->LDAP_MEMBER_TYPE_DN;
+			$dn = getDolGlobalString('LDAP_MEMBER_TYPE_DN');
 		}
 		if ($mode == 2) {
 			$dn = getDolGlobalString('LDAP_KEY_MEMBERS_TYPES') . "=".$info[getDolGlobalString('LDAP_KEY_MEMBERS_TYPES')];
@@ -868,7 +868,7 @@ class AdherentType extends CommonObject
 		$info = array();
 
 		// Object classes
-		$info["objectclass"] = explode(',', $conf->global->LDAP_MEMBER_TYPE_OBJECT_CLASS);
+		$info["objectclass"] = explode(',', getDolGlobalString('LDAP_MEMBER_TYPE_OBJECT_CLASS'));
 
 		if (empty($this->note_public) && !empty($this->note)) {		// For backward compatibility
 			$this->note_public = $this->note;
diff --git a/htdocs/adherents/subscription.php b/htdocs/adherents/subscription.php
index 182957bc97d..511553b9e88 100644
--- a/htdocs/adherents/subscription.php
+++ b/htdocs/adherents/subscription.php
@@ -1056,7 +1056,7 @@ if (($action == 'addsubscription' || $action == 'create_thirdparty') && $user->h
 					print $langs->trans("CreateDolibarrThirdParty");
 					print '</a>)';
 				}
-				if (!getDolGlobalString('ADHERENT_VAT_FOR_SUBSCRIPTIONS') || $conf->global->ADHERENT_VAT_FOR_SUBSCRIPTIONS != 'defaultforfoundationcountry') {
+				if (!getDolGlobalString('ADHERENT_VAT_FOR_SUBSCRIPTIONS') || getDolGlobalString('ADHERENT_VAT_FOR_SUBSCRIPTIONS') != 'defaultforfoundationcountry') {
 					print '. <span class="opacitymedium">'.$langs->trans("NoVatOnSubscription", 0).'</span>';
 				}
 				if (getDolGlobalString('ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS') && (isModEnabled('product') || isModEnabled('service'))) {
@@ -1086,7 +1086,7 @@ if (($action == 'addsubscription' || $action == 'create_thirdparty') && $user->h
 					print $langs->trans("CreateDolibarrThirdParty");
 					print '</a>)';
 				}
-				if (!getDolGlobalString('ADHERENT_VAT_FOR_SUBSCRIPTIONS') || $conf->global->ADHERENT_VAT_FOR_SUBSCRIPTIONS != 'defaultforfoundationcountry') {
+				if (!getDolGlobalString('ADHERENT_VAT_FOR_SUBSCRIPTIONS') || getDolGlobalString('ADHERENT_VAT_FOR_SUBSCRIPTIONS') != 'defaultforfoundationcountry') {
 					print '. <span class="opacitymedium">'.$langs->trans("NoVatOnSubscription", 0).'</span>';
 				}
 				if (getDolGlobalString('ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS') && (isModEnabled('product')|| isModEnabled('service'))) {