Solved

regular expression question in php preg_match

Posted on 2008-06-16
1
215 Views
Last Modified: 2012-05-05
i'd like to check the following

okay:
'-'
'-1'
'-1212'
'-12.22'

not okay:
'- '
'#'
'-1/1'
'-1,2'
'-1.2.2.2'
'1,2'
'1/1'
'1.2.2'

Thanks
0
Comment
Question by:edyonline
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 49

Accepted Solution

by:
Roonaan earned 125 total points
ID: 21796047
if(preg_match('/^\-\d+(\.\d+)?$/', $value)) {
  //valid
} else {
  //invalid
}
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Author Note: Since this E-E article was originally written, years ago, formal testing has come into common use in the world of PHP.  PHPUnit (http://en.wikipedia.org/wiki/PHPUnit) and similar technologies have enjoyed wide adoption, making it possib…
These days socially coordinated efforts have turned into a critical requirement for enterprises.
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…

724 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question