The Symfony Polyfill / Ctype Component

This component provides ctype_* functions to users who run PHP versions without the ctype extension.

Installation

$ composer require symfony/polyfill-ctype

注釈

If you install this component outside of a Symfony application, you must require the vendor/autoload.php file in your code to enable the class autoloading mechanism provided by Composer. Read this article for more details.

Usage

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

Provided Functions

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