mysql_num_rows（）期望参数1是给定的资源布尔值

Question

我的查询有什么问题？

$check_select = mysql_num_rows(mysql_query("SELECT * FROM `user` WHERE user_id = '$user_fbid'"));
if($check_select > 0){
    mysql_query("INSERT INTO `user` (user_id, name, photo) VALUES ('$user_fbid', '$user_fnmae', '$user_image')");
}

它回来了 mysql_num_rows（）期望参数1是资源，在

中给出布尔值

Answer 1

$row = mysql_query("SELECT * FROM user WHERE user_id = '{$user_fbid}'");
$check_select = mysql_fetch_array($row);

if($check_select > 0){
    mysql_query("INSERT INTO user (user_id, name, photo) VALUES ('{$user_fbid}', '{$user_fnmae}', '{$user_image}')");
}

AND使用mysql停止工作！ 使用mysqli或pdo

Answer 2

尝试使用以下

$check_select = mysql_num_rows(mysql_fetch_assoc(mysql_query("SELECT * FROM `user` WHERE user_id = '$user_fbid'")));
if($check_select > 0){
    mysql_query("INSERT INTO `user` (user_id, name, photo) VALUES ('$user_fbid', '$user_fnmae', '$user_image')");
}