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 More on is_numeric vs. ctype_digit
August 17, 2006 @ 07:32:52

Tiffany Brown has posted an update to her look into is_numeric versus ctype_digit today, mentioning an issue she came across when testing based on the differences she found in her previous posting.

Just a quick follow-up to my post on is_numeric vs. ctype_digit. There is one quirk with ctype_digit that may affect your choice about whether to use it.

When the string in question is empty, ctype_digit returns TRUE. However, when it is null, ctype_digit will return FALSE.

She includes code to illustrate, noting the return of each function.

0 comments voice your opinion now!
is_numeric ctype_digit quirk true false return is_numeric ctype_digit quirk true false return


blog comments powered by Disqus

Similar Posts

Stijn Leenknegt's Blog: [PHP6] function-return-array idea!

Federico Cargnelutti: TDD: Checking the return value of a Stub

Stijn Leenknegt's Blog: [PHP6] function-return-array idea!

Jacob Santos' Blog: XMLHttpRequest Quirks and PHP

php|architect: The Pro::PHP Podcast Returns


Community Events





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


tips conference introduction list voicesoftheelephpant framework api zendserver community deployment podcast library release series laravel language interview symfony bugfix developer

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