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

array_combine() error
getting an "Warning: array_combine() [function.array-combine]: Both parameters should have an e

Redirecting Admin
In my members table, I have a field called "perm" and it's set to zero for all members. Ho

php call servlet
I have done a php backup application .
So there is a form that user pick some files to zip and d

File upload issues
Hi Guys,

Can anyone see any issues with this code:
Code: [Select]$setImage= 'productimages

cURL error
So here is my code... I got it off of here... http://www.youtube.com/watch?v=XcgQUsorF_8
Because

SMTP server...
I recently found a tutorial online on SMTP authentification for sending emails from webpages, here i

How to make a mail Form secure?
I want to create an email Form on my web site. How can I make the Form secure so the submitted info

asp authentication problem
Hello all, I want to use the asp authentication (from asp.net configuration) in my web site. there

Progress bar tracking file downloads
Hey guys, was wondering if there was a way to track how far a file has been downloaded. I know there

Program with calculate Meteorologic measurements
Hello I'm a beginner and I want to make a program with calculate Meteorologic measurements:
ba