How to convert position between key and value in php array

This article is about how to change the position between keys and values in the php array. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Conversion method: 1, the use of foreach loop and an empty array, syntax "foreach ($arr1 as $k = > $v) {$arr2 [$v] = $k;}"; 2, the use of array_flip () function, syntax "array_flip ($array)".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php converts keys and values in an array

Method 1: use foreach loop and an empty array

Output result:

Method 2: use the array_flip () function

The array_flip () function can exchange keys and values in an array

Output result:

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