News Feed
Jobs Feed

News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Tiffany Brown's Blog:
PHP quickie is_numeric() versus ctype_digit()
July 28, 2006 @ 06:18:39

In this new post Tiffany Brown shares a "PHP quickie" with her readers - using is_numeric versus ctype_digit.

The difference is subtle, but important one. Which function you use depends on the condition for which you're testing.

is_numeric tests whether the string in question is a number. ctype_digit(), on the other hand, tests whether the string in question contains all numeric characters.

To help alleviate the confusion, she gives some code that does var_dumps of both methods, clearly showing the difference.

2 comments voice your opinion now!
is_numeric ctype_digit usage quickie tutorial is_numeric ctype_digit usage quickie tutorial

blog comments powered by Disqus

Similar Posts Understanding HTTP Digest Access Authentication

Jonathan Snook's Blog: Multiple Validation Sets in CakePHP 1.2 Expressive Tests with Hamcrest

Brian Swan's Blog: Consuming SQL Azure Data with the OData SDK for PHP Sending Email with PHP

Community Events

Don't see your event here?
Let us know!

symfony2 release application hack introduction series package facebook language framework component install performance unittest code composer opinion hhvm security podcast

All content copyright, 2014 :: - Powered by the Solar PHP Framework