4 files changed, 26 insertions, 7 deletions
diff --git a/system/database/drivers/mysql/mysql_result.php b/system/database/drivers/mysql/mysql_result.php
index 66f782df0..29297b6a4 100644
--- a/system/database/drivers/mysql/mysql_result.php
+++ b/system/database/drivers/mysql/mysql_result.php
@@ -98,10 +98,10 @@ class CI_DB_mysql_result extends CI_DB_result {
 		$retval = array();
 		while ($field = mysql_fetch_object($this->result_id))
 		{
-			preg_match('/([a-zA-Z]+)(\((\d+)\))?/i', $field->Type, $matches);
+			preg_match('/([a-zA-Z]+)(\(\d+\))?/', $field->Type, $matches);
 
-			$type = $matches[1];
-			$length = isset($matches[3]) ? (int) $matches[3] : NULL;
+			$type = (array_key_exists(1, $matches)) ? $matches[1] : NULL;
+			$length = (array_key_exists(2, $matches)) ? preg_replace('/[^\d]/', '', $matches[2]) : NULL;
 
 			$F				= new stdClass();
 			$F->name		= $field->Field;
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index 4af08c8a9..fb5953bd7 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -574,6 +574,25 @@ class CI_DB_mysqli_driver extends CI_DB {
 
 	// --------------------------------------------------------------------
 
+
+	/**
+	 * Replace statement
+	 *
+	 * Generates a platform-specific replace string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param	array	the insert values
+	 * @return	string
+	 */
+	function _replace($table, $keys, $values)
+	{
+		return "REPLACE INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
+	}
+	
+	// --------------------------------------------------------------------
+
 	/**
 	 * Update statement
 	 *
diff --git a/system/database/drivers/mysqli/mysqli_result.php b/system/database/drivers/mysqli/mysqli_result.php
index bfe500e19..163788b6c 100644
--- a/system/database/drivers/mysqli/mysqli_result.php
+++ b/system/database/drivers/mysqli/mysqli_result.php
@@ -98,10 +98,10 @@ class CI_DB_mysqli_result extends CI_DB_result {
 		$retval = array();
 		while ($field = mysqli_fetch_object($this->result_id))
 		{
-			preg_match('/([a-zA-Z]+)(\((\d+)\))?/i', $field->Type, $matches);
+			preg_match('/([a-zA-Z]+)(\(\d+\))?/', $field->Type, $matches);
 
-			$type = $matches[1];
-			$length = isset($matches[3]) ? (int) $matches[3] : NULL;
+			$type = (array_key_exists(1, $matches)) ? $matches[1] : NULL;
+			$length = (array_key_exists(2, $matches)) ? preg_replace('/[^\d]/', '', $matches[2]) : NULL;
 
 			$F				= new stdClass();
 			$F->name		= $field->Field;
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index a66a16e90..18a508b15 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -255,7 +255,7 @@ class CI_DB_pdo_driver extends CI_DB {
 		// Reset the transaction failure flag.
 		// If the $test_mode flag is set to TRUE transactions will be rolled back
 		// even if the queries produce a successful result.
-		$this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
+		$this->_trans_failure = (bool) ($test_mode === TRUE);
 
 		return $this->conn_id->beginTransaction();
 	}