PHP -- variable Variables

Introduction: This is a detailed page of PHP-variable variables. It introduces PHP, related knowledge, skills, experiences, and some PHP source code.

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Recently, a friend who has just been familiar with PHP is talking about "variable variables ". Here is an example.

<? PHP // define a variable $ student = "Xiaoming"; $ newstudent = "hao";?>

In fact, the final result is the same as $ Xiaoming = "hao. To put it simply, the value of the variable $ student is defined as Xiaoming. You do not need to create another variable named $ Xiaoming or assign a value to it. You can use $ newstudent directly to achieve this purpose. Create a new variable based on the current value of $ student and assign the Hao value to the new variable. ------- You can create dynamic variables and assign values to them.

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