错误：'where子句'中的未知列'Maslulim'

Question

我的代码如下：

    $pullGroupNamesSQL ="SELECT 'Group name' FROM `requests` WHERE 'stage'=$stageID"
                        . " and 'date'='2014-03-18'";
    $pullGroupName = mysqli_query($con, $pullGroupNamesSQL)
                or die("Error: ".mysqli_error($con));

当我尝试运行此查询时，出现此错误：

Error: Unknown column 'Maslulim' in 'where clause'

我在网上检查了很多（!!!）但找不到这个答案...

Answer 1

试试这个

"SELECT Group name FROM requests WHERE stage= ".$stageID." and date='2014-03-18'"

Answer 2

试试这个

$pullGroupNamesSQL = "SELECT column_name FROM Table_name WHERE stage='$stageID' AND date='2014-03-18'";