The Symfony Polyfill / Ctype Component

This component provides ctype_* functions to users who run PHP versionswithout the ctype extension.

Installation

$ composer require symfony/polyfill-ctype

Note

If you install this component outside of a Symfony application, you mustrequire the vendor/autoload.php file in your code to enable the classautoloading mechanism provided by Composer. Readthis article for more details.

Usage

Once this component is installed in your application, you can use the followingfunctions, no matter if the PHP Ctype extension is installed or not in yourserver.

Provided Functions

• ctype_alnum
• ctype_alpha
• ctype_cntrl
• ctype_digit
• ctype_graph
• ctype_lower
• ctype_print
• ctype_punct
• ctype_space
• ctype_upper
• ctype_xdigit