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This article will explain in detail how to use get_defined_vars () in the built-in function of PHP. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

Get_defined_vars ()

This is a very useful function when debugging debug. This function returns a multidimensional array containing all the defined variables.

Usage:

Print_r (get_defined_vars ()); what are the characteristics of php? 1. Fast execution. 2. It has good openness and expansibility. 3. PHP supports a variety of mainstream and non-mainstream databases. Object-oriented programming: PHP provides classes and objects. 5. The update speed of the version is fast. 6. It has rich functions. 7. Scalability. 8. Comprehensive functions, including graphics processing, encoding and decoding, compressed file processing, xml analysis and so on.

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