From d16bab12339fe2746e1ead72ba96351c3423c27c Mon Sep 17 00:00:00 2001
From: Derek Jones <derek.jones@ellislab.com>
Date: Wed, 24 Sep 2008 18:22:03 +0000
Subject: added removal of non-printing characters to escape_str() of drivers
 that do not have native PHP escaping mechanisms

---
 system/database/drivers/mssql/mssql_driver.php | 2 +-
 system/database/drivers/oci8/oci8_driver.php   | 2 +-
 system/database/drivers/odbc/odbc_driver.php   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'system/database')

diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index 98c03c56e..5ac90b451 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -214,7 +214,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	function escape_str($str)	
 	{	
 		// Escape single quotes
-		return str_replace("'", "''", $str);
+		return str_replace("'", "''", $this->input->_remove_invisible_characters($str));
 	}
 	
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index d6bc512be..765c3f6c9 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -366,7 +366,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 */
 	function escape_str($str)
 	{
-		return $str;
+		return $this->input->_remove_invisible_characters($str);
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 647171696..f89000d83 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -235,7 +235,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	function escape_str($str)	
 	{
 		// ODBC doesn't require escaping
-		return $str;
+		return $this->input->_remove_invisible_characters($str);
 	}
 	
 	// --------------------------------------------------------------------
-- 
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