SQL Updates: Updates Multiple rows rather than Single rows - php

Question

I am writing a code for MySQL to fetch the 1st row with status is "inactive" and make them "active", but whenever I tried to update the column and make it "active" my query updates multiple rows rather than the single row.
date_default_timezone_set('Asia/Kolkata');
$d = time ();
$date = date("Y-m-d", $d);
$customer_id="1470831854";
$member_details="SELECT * FROM login_update WHERE customer_id ='$customer_id' AND status='inactive' ORDER BY id ASC LIMIT 1 ";
$member = mysql_query($member_details);
while($list = mysql_fetch_array($member)){
$status = $list['status'];
$id = (int)$list['id'];
}
$date_update = "UPDATE login_update SET status='active' WHERE id = '$id'";
$enter_date = mysql_query($date_update);

Answer 1

I think your code should be change as follow
while($list = mysql_fetch_array($member)){
$status = $list['status'];
$customerId = (int)$list['customer_id'];
}
$date_update = "UPDATE login_update SET status='active' WHERE id = '$customerId'";
$enter_date = mysql_query($date_update);
becasue if you get $list['id'] it is always return only 1 unique value from the database then update only one record. I assumed id is your primary key.