text box alphanumeric caracters only

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

hi all!

I have search on google on how to enter in a test box only caracters A-Z,a-z,0-9 using php, but all the solutions are not for me
I need, if you can help me to allow a user to insert only those caracters and with no space at all, like in username field.

Can you please help me with an example?

Thanks!

Your Answer:

Login to answer

Other forums

how make 2 column in table with data tybe long row
hi every one

I want make in my table 2 column with data tybe long raw

how thi

empty() error
Why does

Code: empty($USER_ID = $_SESSION["USER_ID"])
create this error...

Problem with the Update command used with a sqldataadapter
I'm connected to a database on an SQL Server and I'm using a sqldataadapter, sqlconnection, sqldatas

my sql select id and then update problem.
I need to select some auto incremented ids out of a database and then use those id in a where statem

Certain files upload, while others do not
I want to read the data from an uploaded file. Not sure why, but it only uploads for certain files.

SCRIPT ERROR
Here is the CONTACT FORM I made for our website:

<form id="form1" name="

Disable html within defined tags
I have a mysql database that allows users to enter content with html, but I also want to have a tag

php/mysql problem
Hey all,

Problem: im trying to setup a shop where people can use a drop-down list to select t

Prevent PHP mail( ) from appending hostname to from address
Hey guys,

I want to be able to send texts to phones via email (since each phone has their own

Upload simple problem
Really confused!! I run once and it worked, but when i tried today...it didn't work

Which par