PHP表查询显示前端

Question

大家好我正在查询mysql表并使用php在前端显示结果。但我未能按用户过滤数据，即我只想根据当前用户ID显示结果。

数据库连接

$mysqli = new mysqli ('*******', '******', '*******', '******');

$current_user = get_user_id();
$sql = "SELECT Results FROM `assessments` where User_ID = current_user";

      if ( value < 50 ) {
    echo "You need to improve";

    } else {
        echo " Good Work ";

}

我的表格如下

User_ID                 Results
20                      59
27                      47
28                      60
30                      60

Answer 1

你在current_user之前错过了一个$。试试：

$sql = "SELECT Results FROM `assessments` where User_ID = $current_user";