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This article introduces the knowledge of "how php creates arrays by merging". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Description

1. Array_combine creates a new array by merging two arrays.

The element in the $keys array serves as the key name of the new array, and the element of the $values array serves as the key value of the new array.

2. When creating an array using array_combine (), the number of elements in the $keys array and the $values array must be the same.

Only in this way can the key name correspond to the key value one by one, otherwise an error will be reported and FALSE will be returned:

Example

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