How to convert an array key name to a variable name by php

This article mainly explains "php how to convert array key names into variable names". The content of the article is simple and clear, and it is easy to learn and understand. Please follow Xiaobian's train of thought to study and learn "how php converts array key names into variable names".

Operating environment of this article: Windows7 system, PHP7.1 version, Dell G3 computer

Php takes the key name in the array as the variable name, and the key value as the variable name.

Method 1: use foreach loop to implement

Output result:

Method 2: using the extract () function

The extract () function imports variables from an array into the current symbol table. This function uses the array key name as the variable name and the array key value as the variable value. For each element in the array, a corresponding variable is created in the current symbol table. This function returns the number of variables that were successfully set.

Output result:

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