[英]PHP - Getting a string from MySQL Query
I need to retrieve a string from a query and then use that later on in another SQL query. 我需要从查询中检索一个字符串,然后在另一个SQL查询中使用它。
This is what I have, I'm retrieving the current branch ID for the currently logged in user: 这就是我所拥有的,我正在为当前登录用户检索当前分支ID:
$neededBranch = mysqli_query($con, "SELECT BranchNumber FROM Staff WHERE staffID = '".$_SESSION['username_login']."'");
And then I need to use said string here like this: 然后我需要在这里使用这样的字符串:
$result = mysqli_query($con, "INSERT INTO SomeTable (
blah,
blah,
)
VALUES ('".$SomeValue."',"
. " '".$_SESSION['username_login']."',"
. " '".$neededBranch."')");
Now, the " . " '".$neededBranch."')");
" does not work because it is expecting a string. 现在,“ . " '".$neededBranch."')");
“不起作用,因为它需要一个字符串。
My question is: How do I actually get the value I'm needing from the first query and use it in the second query? 我的问题是:如何实际上从第一个查询中获取所需的值并在第二个查询中使用它? I'm new at PHP and don't have a clue. 我是PHP的新手,没有头绪。
Fetch the data you queried: 获取您查询的数据:
$result= mysqli_query($con, $query);//query is the select stmt
$row = mysqli_fetch_assoc($result);
$neededBranch = $row['BranchNumber'];
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