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

PHP friend keyword equivalent
is there a PHP equivalent for the C++ friend keyword?

Data Function is Its Not working IN IE8
This is my first time to use formums. I hope i can get solution for this problem. view plaincopy to

Simple image grab script.
I was wondering if it was possible and if anyone knew how to make a simple php script that looks at

Problem with passing variables
I'm not really a php programmer so I'm really struggling with this issue.

I have a banner s

New Search Engine problem
Hey everyone,

I have a ZIP Code Radius search engine already functional. it displays all of t

Need help-Error istream header declaration
Hi Everyone ,

I am having issue with istream declaration. I am new to C programming.
can a

Handling text changed in text box control using Ajax
I need to create a web form with a text box control. When someone types text into the textbox I nee

mysql timestamp manipulation
How could I use a timestamp (e.g 2009-10-30 13:20:35 ), and with php find out if it is:

from

help with mysql_error()
Hi,

I am trying to insert data into a table, but I am not able to insert it. I wanted to see

Is there a function ... auto send IP
Is there some function that can be sent to a ddns service that returns the ip address of a ddns forw