RE: [PHP] Value Checking
| From: | Mark Peoples | Date: | Wed, 25 Oct 2000 17:44:08 +0000 |
| Subject: | RE: [PHP] Value Checking | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-21862@lists.php.net to get a copy of this message | ||
--checkName.php3---
<?php
$userName = "john42"; /* this really comes from a form or whatever */
$getData = mysql_query("SELECT userName FROM users", $db);
while($checkData = mysql_fetch_array($getData))
{
if($userName == $checkData["userName"])
print("Sorry, this name is used.");
else
mysql_query("INSERT INTO users (userName) VALUES ('$userName')", $db);
}
?>
I use this method to check for a home-grown sessions-checking/tracking
system.
marco
-----Original Message-----
From: Phillip S. Baker [mailto:phillip@wordsandimages.com]
Sent: Tuesday, October 24, 2000 3:33 PM
To: php-general@lists.php.net
Subject: [PHP] Value Checking
Okay I want to run a query against the DB to see if a new user is trying to
take the name of an existing user at the web site.
The users are placed in a members table in a MySQL database.
How would I run a simple check like this on the DB. I understand the
if...else part that I would need to write. If the User matches an existing
user return to previous page else run this insert script. But how would the
code look for the checking query?
Thanks
Phillip S. Baker
phillip@wordsandimages.com
Words & Images
1535 Seabright Avenue, Suite 100, Santa Cruz, CA 95062
Direct Line (831) 420-2641 / Fax (831) 458-0808
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