选择查询不从数据库中选择

Question

我有一个select查询没有从数据库中提取。我知道连接正常，因为我有一个insert查询可以正常工作。我知道我的查询失败了，因为它显示了我的其他声明。

我做错了什么？

$con = mysqli_connect($DB_HOST,$DB_USER,$DB_PASSWORD,$DB_DATABASE);
if(!$con){
    echo "Connection Error...".mysqli_connect_error();
}
else
{
    echo "<h3>Database connection Success...</h3>";
}
$user_name = $_POST["login_name"];
$user_pass =  $_POST["login_pass"];
$sql_query = "select name from user_info where user_name like '$user_name'
and user_pass like '$user_pass';";
$result = mysqli_query($con,$sql_query);
if ( $result == false ) {
 echo mysqli_error($con); exit; 
}
if(mysqli_num_rows($result) >0 )
{
    $row = mysqli_fetch_assoc($result);
    $name =$row["name"];
    echo "Login Success..Welcome ".$name;
}
else
{
    echo "Login Failed.......Try Again..";
}
?>