diff --git a/htdocs/categories/index.php b/htdocs/categories/index.php
index 708fb3a3e83..c585217dfda 100644
--- a/htdocs/categories/index.php
+++ b/htdocs/categories/index.php
@@ -186,7 +186,7 @@ foreach ($fulltree as $key => $val) {
 			? $categstatic->getObjectsInCateg("account", 1)			// Categorie::TYPE_ACCOUNT is "bank_account" instead of "account"
 			: $categstatic->getObjectsInCateg($type, 1);
 
-		$counter = "<td class='left' width='40px;'>".(is_countable($elements) ? count($elements) : '0')."</td>";
+		$counter = "<td class='left' width='40px;'>".(is_array($elements) ? count($elements) : '0')."</td>";
 	}
 
 	$color = $categstatic->color ? ' style="background: #'.sprintf("%06s", $categstatic->color).';"' : ' style="background: #bbb"';
diff --git a/htdocs/categories/viewcat.php b/htdocs/categories/viewcat.php
index eeca990ef28..a1f63b997e8 100644
--- a/htdocs/categories/viewcat.php
+++ b/htdocs/categories/viewcat.php
@@ -378,7 +378,7 @@ if ($cats < 0) {
 				? $categstatic->getObjectsInCateg("account", 1)			// Categorie::TYPE_ACCOUNT is "bank_account" instead of "account"
 				: $categstatic->getObjectsInCateg($type, 1);
 
-			$counter = "<td class='left' width='40px;'>".(is_countable($elements) ? count($elements) : '0')."</td>";
+			$counter = "<td class='left' width='40px;'>".(is_array($elements) ? count($elements) : '0')."</td>";
 		}
 
 		$color = $categstatic->color ? ' style="background: #'.sprintf("%06s", $categstatic->color).';"' : ' style="background: #bbb"';
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index e8a8eb2843e..85987c8a3cf 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -860,7 +860,7 @@ abstract class CommonObject
 		if (!empty($conf->socialnetworks->enabled)) {
 			$outsocialnetwork = '';
 
-			if (!empty($this->socialnetworks) && is_countable($this->socialnetworks) && count($this->socialnetworks) > 0) {
+			if (!empty($this->socialnetworks) && is_array($this->socialnetworks) && count($this->socialnetworks) > 0) {
 				$socialnetworksdict = getArrayOfSocialNetworks();
 				foreach ($this->socialnetworks as $key => $value) {
 					if ($value) {