News Feed
Sections




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

ITNewb.com: PHP Encryption / Decryption Using the MCrypt Library (libmcrypt)

Brian Swan's Blog: CRUD Operations with the OData SDK for PHP

PHP in Action: Get links with XPath

NetTuts.com: How to Generate a Complete Excel Spreadsheet From MySQL

PHPEveryDay.com: Zend Framework Basic Tutorial


Community Events





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


bugfix framework application install language configure developer threedevsandamaybe wordpress unittest podcast library community introduction release laravel series list api interview

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework