PHP drawing when using the verification code

Source: Internet
Author: User
PHP Drawing Application Verification Code

In the drawing, as previously said, PHP's drawings are really dynamic drawings, although they admit that the figure is not good-looking, but our main concern should be the data processing.

Verification code we almost everywhere, and its production and mapping technology is inseparable, in fact, simple verification code is drawn out is very simple, like the following piece of code can be drawn to contain letters and numbers of elements:


The above code is simply to say the verification code of the drawing, in fact, the code is not handled safely.

The following is relative to the relative complexity of the verification code processing:


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