diff --git a/libraries/joomla/database/driver/mysql.php b/libraries/joomla/database/driver/mysql.php
index a3efa9b6866..a7a82f5825c 100644
--- a/libraries/joomla/database/driver/mysql.php
+++ b/libraries/joomla/database/driver/mysql.php
@@ -154,12 +154,12 @@ public function escape($text, $extra = false)
 		if (is_float($text))
 		{
 			// Force the dot as a decimal point.
-			return str_replace(',', '.', $text);
+			return str_replace(',', '.', (string) $text);
 		}
 
 		$this->connect();
 
-		$result = mysql_real_escape_string($text, $this->getConnection());
+		$result = mysql_real_escape_string((string) $text, $this->getConnection());
 
 		if ($extra)
 		{
diff --git a/libraries/joomla/database/driver/mysqli.php b/libraries/joomla/database/driver/mysqli.php
index a7e1c604215..1de0b14b712 100644
--- a/libraries/joomla/database/driver/mysqli.php
+++ b/libraries/joomla/database/driver/mysqli.php
@@ -246,12 +246,12 @@ public function escape($text, $extra = false)
 		if (is_float($text))
 		{
 			// Force the dot as a decimal point.
-			return str_replace(',', '.', $text);
+			return str_replace(',', '.', (string) $text);
 		}
 
 		$this->connect();
 
-		$result = mysqli_real_escape_string($this->getConnection(), $text);
+		$result = mysqli_real_escape_string($this->getConnection(), (string) $text);
 
 		if ($extra)
 		{
diff --git a/libraries/joomla/database/driver/pdo.php b/libraries/joomla/database/driver/pdo.php
index 78d3bba5521..1a256c1de43 100644
--- a/libraries/joomla/database/driver/pdo.php
+++ b/libraries/joomla/database/driver/pdo.php
@@ -349,10 +349,10 @@ public function escape($text, $extra = false)
 		if (is_float($text))
 		{
 			// Force the dot as a decimal point.
-			return str_replace(',', '.', $text);
+			return str_replace(',', '.', (string) $text);
 		}
 
-		$text = str_replace("'", "''", $text);
+		$text = str_replace("'", "''", (string) $text);
 
 		return addcslashes($text, "\000\n\r\\\032");
 	}
diff --git a/libraries/joomla/database/driver/pdomysql.php b/libraries/joomla/database/driver/pdomysql.php
index 3d38bd991ef..74ff282aa87 100644
--- a/libraries/joomla/database/driver/pdomysql.php
+++ b/libraries/joomla/database/driver/pdomysql.php
@@ -464,7 +464,7 @@ public function escape($text, $extra = false)
 		if (is_float($text))
 		{
 			// Force the dot as a decimal point.
-			return str_replace(',', '.', $text);
+			return str_replace(',', '.', (string) $text);
 		}
 
 		$this->connect();
diff --git a/libraries/joomla/database/driver/postgresql.php b/libraries/joomla/database/driver/postgresql.php
index 71dad35bcff..7bea2203bfb 100644
--- a/libraries/joomla/database/driver/postgresql.php
+++ b/libraries/joomla/database/driver/postgresql.php
@@ -212,12 +212,12 @@ public function escape($text, $extra = false)
 		if (is_float($text))
 		{
 			// Force the dot as a decimal point.
-			return str_replace(',', '.', $text);
+			return str_replace(',', '.', (string) $text);
 		}
 
 		$this->connect();
 
-		$result = pg_escape_string($this->connection, $text);
+		$result = pg_escape_string($this->connection, (string) $text);
 
 		if ($extra)
 		{