check if value exists

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

I have googled this for a while and I am getting lots of different results. Is there a standard method used for checking to see if a value exists in a database before inserting a value? I have a form, you type your name and push submit, it inserts the name into the database and then the name shows up in a list. Right now, it accepts the same values. I want to add a check to say

if name exists, do something

Your Answer:

Login to answer

Other forums

Filling gaps in dates
So i'm doing a query for sales data and my return array looks like this

('date' => '20

please hep to get values from a table row
can anyone tel me how I can select and get data from one row by pressing an Edit button in that row

j1inmis Ouput layout changes
Hi,

Can anybody tell how can j1inmis output layout can be changed so that vendor names ge

Inserting a variable in a link
I have this code that I want to insert for my own variable but I have no idea how. This is what I wa

Access website from only 1 computer...?
One of my customers wants his website to only be accessed by people in which they bought the website

How to separate records and ORDER BY
Let say i have 100 records and displayed in one page, then i want to get the records from 50-100 and

parse error
Parse error: syntax error, unexpected '[', expecting ')' in /Users/admin/Sites/phptest/array.php on

Mysql query, two times?
Hello to all,

I'm new to php coding and i like it alot. I need help with some noob stuff.

modifying query string with no page refresh
Hi everybody,
I've tried to get info about my problem all over the internet but i didn't find out

Please help with SMTP Authenticated PHP Email Form
Hello, I'm creating a PHP email form, and for this particular server, I have to use SMTP Authenticat