Index: t3lib/class.t3lib_db.php
===================================================================
--- t3lib/class.t3lib_db.php	(revision 8804)
+++ t3lib/class.t3lib_db.php	(working copy)
@@ -828,7 +828,7 @@
 	 * @see quoteStr()
 	 */
 	function escapeStrForLike($str, $table) {
-		return preg_replace('/[_%]/', '\\\$0', $str);
+		return addcslashes($str, '_%');
 	}
 
 	/**
Index: tests/t3lib/t3lib_dbTest.php
===================================================================
--- tests/t3lib/t3lib_dbTest.php	(revision 8804)
+++ tests/t3lib/t3lib_dbTest.php	(working copy)
@@ -135,5 +135,19 @@
 		);
 	}
 
+
+	/////////////////////////////////////////////////
+	// Tests concerning escapeStringForLikeComparison
+	/////////////////////////////////////////////////
+
+	/**
+	 * @test
+	 */
+	public function escapeStringForLikeComparison() {
+		$this->assertEquals(
+			'foo\_bar\%',
+			$this->fixture->escapeStrForLike('foo_bar%', 'table')
+		);
+	}
 }
 ?>
\ No newline at end of file