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This article focuses on "how to remove a key from an array by php". Interested friends may wish to take a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how php removes a key from an array.

Php method to remove a key from the array: 1, create a PHP sample file; 2, determine the key of the array elements to be deleted; 3, delete the specified key through the array_diff_key function.

This article operating environment: Windows7 system, PHP7.1 version, Dell G3 computer.

How does php remove a key from an array?

Array_diff_key () method:

If you know the key of the array element to be deleted, you can use array_diff_key (). You need to enter the key to delete in the key position of the second parameter of the function, and the value is optional.

The output is as follows:

Array ([1] = > b) so far, I believe you have a better understanding of "how php removes a key from an array". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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