questions filter filtered

dbFiles/Question.php

@@ -14,12 +14,7 @@
 	}
 	mysqli_set_charset($conn,'utf8');
 	
-	$sql = "SELECT questions.id, question, answer, categoryId as category, name, r,g,b,a FROM questions 
-		INNER JOIN questionToCategory ON questions.id = questionToCategory.questionId 
-		INNER JOIN category on category.id = questionToCategory.categoryId 
-		WHERE questionToCategory.categoryId IN (SELECT categoryId FROM gameCategories WHERE gameId = $gameId) AND
-		questions.id NOT IN ($answeredQuestions)
-		ORDER BY RAND() limit 1";
+	$sql = "SELECT questions.id, question, answer, categoryId as category, name, r,g,b,a FROM questions INNER JOIN questionToCategory ON questions.id = questionToCategory.questionId INNER JOIN category on category.id = questionToCategory.categoryId WHERE questionToCategory.categoryId IN (SELECT categoryId FROM gameCategories WHERE gameId = $gameId) " . ($answeredQuestions == ""?:" AND questions.id NOT IN ($answeredQuestions)") . " ORDER BY RAND() limit 1";
 	
 	$result = mysqli_query($conn, $sql);