Shulou(Shulou.com)06/03 Report--

The main content of this article is to explain "a useful method for writing PHP verification code classes". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn "a good PHP verification code class writing method"!

Share a useful php authentication code class, including call examples.

Description:

If the specified font is not applicable, then use the imagestring () function, and if you need to encounter the specified font, use the imagettftext () function. The position of the font is Windows/Fonts under disk C.

1. Class VerificationCode.class.php that generates the CAPTCHA

The copy code is as follows:

Code.php

The copy code is as follows:

CAPTCHA:

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