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This article mainly introduces how php uses the $GLOBALS global variable, which has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, let the editor take you to understand it.

$GLOBALS-references all available variables in the global scope

The global variable $GLOBALS is used to access the global variable anywhere in the PHP script (from a function or method).

PHP stores all global variables in an array named $globals [index]. The name of the variable is the key of the array.

The following example shows how to use the super global variable $GLOBALS:

Example

In the above example, because z is a variable in the $GLOBALS array, it can be accessed outside of the function.

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