Question

Anybody know why the this isn’t working:

$no = $_GET['no'];
$findinterval = mysql_query("SELECT * FROM intervals ORDER BY id DESC LIMIT 1");
$result = mysql_fetch_array($findinterval);
$id = $result['id'];
$ip = $_SERVER['REMOTE_ADDR'];

$create_log = mysql_query("INSERT INTO visitors VALUES ('','$ip','$date','$no','$id')");

The above works fine on insertion.

$uniquecheck = mysql_query("SELECT * FROM visitors WHERE no = '$no' AND interval = '$id' AND ip = '$ip'");`

var_dump is giving bool(false).

As the accepted answer verifies, the question was not vague at all. Nevertheless -4 it is.

Answer 1

interval is a reserved word in mysql, so you need to put it in backticks:

SELECT * FROM visitors WHERE no = '$no' AND `interval` = '$id' AND ip = '$ip'

Apart from that the mysql_* functions are deprecated and you should move to PDO / mysqli and prepared statements to close the sql injection hole you have now.