Question

I have a table in a mySQL database where i put a value retrieved from an android application using php.
Now the value is a UniqueID,so i am keeping a count of it,so that i can know how many times my application is accessed.
When a new UniqueID arrives it is added to the database with count=1 and when an existing UniqueID is retieved,its count is simply incremented.
I tried my php script multiple times but with no luck. I am attaching my php script for reference.

<?php


ini_set('default_charset', 'utf-8');
header('Content-Type: text/html; charset=UTF-8');
$n=$_POST['UniqueID'];  
$count=1;  
$Today=date("F j, Y, g:i a");

mysql_connect("localhost","root","");  
mysql_select_db("farm-o-pedia");

$con="select userid from uniqueid";  
$result=mysql_query($con) or die(mysql_error());  
if($result=$n)  
{  

$upd="update uniqueid set count=count+1 where userid=$n";  
$result=mysql_query($upd) or die(mysql_error());  
}  
else  {  
$que="insert into uniqueid (userid,count,date) values($n,\"$count\",\"$Today\")";    
$sql=mysql_query($que) or die(mysql_error());  
}

mysql_close();
?>

Any help would be appreciated.Thanks!

Answer 1

mysql_query returns a resultset, not a single result, so:

$con="select userid from uniqueid";  
$result=mysql_query($con) or die(mysql_error());  
if($row=mysql_fetch_assoc($result)) { //if a row is found in resultset, then you already have this id in your table
    $upd="update uniqueid set count=count+1 where userid=$n";  
    $result=mysql_query($upd) or die(mysql_error());  
} else {  
    $que="insert into uniqueid (userid,count,date) values($n,\"$count\",\"$Today\")";    
    $sql=mysql_query($que) or die(mysql_error());  
}

Also you should start using mysqli functions instead of mysql, as mysql ones are deprecated