MySqlDriver: fixed double escaped \ in formatLike() [Closes #147]

Author: dg

src/Database/Drivers/MySqlDriver.php

@@ -114,7 +114,7 @@ public function formatDateInterval(\DateInterval $value)
 	 */
 	public function formatLike($value, $pos)
 	{
-		$value = addcslashes(str_replace('\\', '\\\\', $value), "\x00\n\r\\'%_");
+		$value = addcslashes(substr($this->connection->quote($value), 1, -1), '%_');
 		return ($pos <= 0 ? "'%" : "'") . $value . ($pos >= 0 ? "%'" : "'");
 	}
 

tests/Database/Drivers/MySqlDriver.formatLike.phpt

@@ -23,5 +23,8 @@ Assert::same(1, $connection->query("SELECT 'AA''BB' LIKE", $connection::literal(
 Assert::same(0, $connection->query("SELECT 'AAxBB' LIKE", $connection::literal($driver->formatLike('A"B', 0)))->fetchField());
 Assert::same(1, $connection->query("SELECT 'AA\"BB' LIKE", $connection::literal($driver->formatLike('A"B', 0)))->fetchField());
 
+Assert::same(0, $connection->query("SELECT 'AAxBB' LIKE", $connection::literal($driver->formatLike('A\B', 0)))->fetchField());
+Assert::same(1, $connection->query("SELECT 'AA\\BB' LIKE", $connection::literal($driver->formatLike('A\B', 0)))->fetchField());
+
 Assert::same(0, $connection->query("SELECT 'AAxBB' LIKE", $connection::literal($driver->formatLike('A\%B', 0)))->fetchField());
 Assert::same(1, $connection->query("SELECT 'AA\\%BB' LIKE", $connection::literal($driver->formatLike('A\%B', 0)))->fetchField());