gettype() problem.

[Anon]

I don't understand this gettype function. I want to check a form to be sure only an integer has been entered by the user. So I figured I would use gettype to check it. Only problem is gettype is printing my numbers as strings. Why???

My field is:

<input type="text" name="books" size="20">

You hit the submit button and I test the field with

<?echo gettype($books);?>

Then I could use a simple if statement. But it is printing 1, 23, 56 etc. as strings. I don't know why??

Thanks.

[jcornett]

Justin,

By default all incoming variables from a form are set to strings. It would be be better to use a regular expression to pick out the value you are looking for once it is submitted. You can also use Javascript to limit the values allowed to submit the form, but it is always good coding practice to check variables on the other side. 🙂

Take Care!

John Cornett
Senior Development Engineer
Web Teks, Inc.
http://www.web-teks.com
E-Mail: [e-mail]