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Most people do not understand the knowledge points of this article "how to use the reference assignment of php variables", so the editor summarizes the following contents, detailed contents, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "php variable reference assignment how to use" article.

Description

1, reference assignment, the use of this assignment method means that the new variable references the original variable, changing one will affect the other.

In this process, the copy operation is omitted, and all these assignment methods are more efficient.

2. Only variables with names can be assigned, and the unset () function releases one of them without affecting the other.

Example

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