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Display MY SQL advanced Count in PHP

Posted on 2014-03-09
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Last Modified: 2014-03-09
Hi I have this PHP script below which works for a selcect count(*) from x

However when I put a more advanced MYSQL syntax in there it gives the following error"Notice: Undefined index: total in /var/www/dupe.php on line 12 Total ="

Any ideas






<?php
$con=mysqli_connect("localhost","ccc","N3wcccc21","actccccaign");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$query = "select count(*) from activecampaign.em_exclusion
Inner join activecampaign.em_subscriber
ON em_exclusion.email = em_subscriber.email";

$result = mysqli_query($con, $query);

echo $result;

mysqli_close($con);
?>
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Comment
Question by:ncomper
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4 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 2000 total points
ID: 39916201
$result = mysqli_query($con, $query);

this will only run the query, and $result will not be the "number" of the count(*), but a resource identifier. after that line, you need to fetch the row into either an object or an array, so after that line, you will do:
http://php.net/mysqli_fetch_array
$result_data = mysqli_fetch_array($result);
echo $result_data[0]; 

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0
 
LVL 58

Expert Comment

by:Gary
ID: 39916210
Since there is no total in your sample code I'm going to assume you are not showing us the real code and expecting us to be psychic.

$query = "select count(*) as total from activecampaign.em_exclusion
Inner join activecampaign.em_subscriber
ON em_exclusion.email = em_subscriber.email"; 

$result = mysqli_query($con,$query);

$rows = mysqli_fetch_row($result );

echo $rows[0];

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0
 
LVL 111

Expert Comment

by:Ray Paseur
ID: 39916293
When in doubt, you can check the online man page for the return values from PHP functions.  Example: Ask yourself, "What is the expected return value from this function?"
http://php.net/manual/en/mysqli.query.php

Some learning resources to help you get started with things like this are available in this article.  Buy any of the books and give yourself a few weeks to read, study and practice.  In no time you'll be able to do this yourself!
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_11769-And-by-the-way-I-am-new-to-PHP.html
0
 
LVL 5

Author Closing Comment

by:ncomper
ID: 39916331
Amazing thank you
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