Querying info from one table based on info in another


Posted on 16th Feb 2014 07:03 pm by admin

Hi, I am currently trying to make a part for my user driven website where one user can subscribe to another and whoever they have subscribed to is echoed back on there profile page.

my users table structure is: id username password and my subscription table is: id user_id follow_id

Did you know?Explore Trending and Topic pages for more stories like this.
i am currently trying to query the logged in users subscriptions with this sql_query

$subsQuery = mysql_query("SELECT U.username FROM users AS U INNER JOIN subscription AS Sub.follow_id=U.id WHERE Sub.user_id=".$ID); $ID being the logged in users id.

However when trying to echo this on the page using this bit of php:

<? while ($subs = mysql_fetch_assoc($subsQuery)) { ?><br /><br />
<? echo $subs['username'] ?>

<? } ?>

it throws back this error:

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/avince/public_html/users/user.php on line 53

Any help would be much appreciated!
No comments posted yet

Your Answer:

Login to answer
271 Like 7 Dislike
Previous forums Next forums
Other forums

email CODING Problem
Email coding problem.

I need to send a section of the info to $tf and the same as a Cc to $em

Saas with SAP R/3
hi experts,

Is SaaS offer available in SAP? for SAP R/3? from where i can get the info a

Retrieving the 25 most recently added entries from all tables in a MySQL databas
Hello,

The code below works great. It creates a table that shows the 25 most recently added t

please fix the error
What is the error in the below code ???
Line number On/Off | Expand/Contract <?php

Material Master Update through BAPI - Follow up material not updated
Hi Experts,

I am updating the material master through a custom transaction using the BAPI

Pre-Fill out a PHP form...??
This is for work actually (geek squad). We have to fill out this online php form at work over and ov

Variable uses and placement
I'm new to PL/SQL and am trying to learn about variable valid uses/placement (any pointers to any do

Update not working ... please help
Hi,

I am trying to update a row using an edit form by passing id of the row .. but it is not

double and single quotes in text fields acting up... help please
Single quotes, when entered into a text field, create an sql error upon Submit. It seems to create t

Help with php code
Hello, can anyone tell me why this php word trap fails to work,
and the trigger words get blow r

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash