Play with PHP’s GD library Wang Zebin

The GD library in Php mainly provides a set of Php graphics processing functions. It is very powerful and can produce dazzling effects. In Web2.0 applications, you will encounter it more or less. So when you apply for a Web2.0 website PHP engineer, you will often be asked about the GD library. In fact, the GD library functions in php are relatively simple, and you generally know their functions The GD library in Php mainly provides a set of Php graphics processing functions. It is very powerful and can produce dazzling effects. In Web2.0 applications, we will encounter it more or less. So when you apply for a Web2.0websitephp engineer, you will often be asked about the GD library. In fact, the GD library functions in php are relatively simple. You only need to have a general understanding of their functions. I have provided a few small examples to help you remember and understand. The source code of the following examples can be downloaded at the following address:http://wangzebin.blog.51cto.com/attachment/200902/653300_1235091601.zip. 1. Chinese character verification code Usually on websites, verification codes like to use a combination of numbers or characters, but for some valuable website services, more stringent verification codes may be required.…

The GD library in Php mainly provides a set of Php graphics processing functions. It is very powerful and can produce dazzling effects. In Web2.0 applications, you will encounter it more or less. So when you apply for a Web2.0 website PHP engineer, you will often be asked about the GD library. In fact, the GD library functions in php are relatively simple, and you generally know their functions The GD library in Php mainly provides a set of Php graphics processing functions. It is very powerful and can produce dazzling effects. In Web2.0 applications, we will encounter it more or less. So when you apply for a Web2.0websitephp engineer, you will often be asked about the GD library. In fact, the GD library functions in php are relatively simple. You only need to have a general understanding of their functions. I have provided a few small examples to help you remember and understand. The source code of the following examples can be downloaded at the following address:http://wangzebin.blog.51cto.com/attachment/200902/653300_1235091601.zip. 1. Chinese character verification code Usually on websites, verification codes like to use a combination of numbers or characters, but for some valuable website services, more stringent verification codes may be required.…

The GD library in Php mainly provides a set of Php graphics processing functions. It is very powerful and can produce dazzling effects. In Web2.0 applications, you will encounter it more or less. So when you apply for a Web2.0 website PHP engineer, you will often be asked about the GD library. In fact, the GD library functions in php are relatively simple, and you generally know their functions The GD library in Php mainly provides a set of Php graphics processing functions. It is very powerful and can produce dazzling effects. In Web2.0 applications, we will encounter it more or less. So when you apply for a Web2.0websitephp engineer, you will often be asked about the GD library. In fact, the GD library functions in php are relatively simple. You only need to have a general understanding of their functions. I have provided a few small examples to help you remember and understand. The source code of the following examples can be downloaded at the following address:http://wangzebin.blog.51cto.com/attachment/200902/653300_1235091601.zip. 1. Chinese character verification code Usually on websites, verification codes like to use a combination of numbers or characters, but for some valuable website services, more stringent verification codes may be required.…