Check Integer or not

[austine_power007]

I have a form and I want to be sure that user give only integer value or it will give a error message.

I think i can use java script does anyone have that ?? help me  :-[

[mansuang]

use regular expression

link for javascript [url=http://www.phpfreaks.com/javascript_manual/page/regexp.htm]http://www.phpfreaks.com/javascript_manual/page/regexp.htm[/url]
link for php [url=http://www.phpfreaks.com/phpmanual/page/ref.regex.html]http://www.phpfreaks.com/phpmanual/page/ref.regex.html[/url]

[austine_power007]

[quote author=mansuang link=topic=117681.msg480292#msg480292 date=1165466668]
use regular expression

link for javascript [url=http://www.phpfreaks.com/javascript_manual/page/regexp.htm]http://www.phpfreaks.com/javascript_manual/page/regexp.htm[/url]
link for php [url=http://www.phpfreaks.com/phpmanual/page/ref.regex.html]http://www.phpfreaks.com/phpmanual/page/ref.regex.html[/url]
[/quote]

I am new in php and tht don't have much example..........so please send me some easy code so that will be easy for me......sorryy i m NUT

[bljepp69]

For checking the form submission using PHP you could try something like:

[code]
if (!preg_match('/[^0-9]+/',$FORMVARIABLE)) {
  //error code goes here
}
else {
  //process code here
}

[/code]

I haven't tested this, but it should reject everything that's not an integer.  You'll just have to fill in the $FORMVARIABLE with your actual variable and then write the error and process code.