How to delete a field in a two-dimensional array in php

How to delete a certain field in a two-dimensional array in php: first create a PHP sample file; then use the array_walk and array_diff functions to delete a certain field in the array.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

php How to delete a field in a two-dimensional array?

The two functions array_walk and array_diff are mainly used here.

Example:

$list = [ 0 => [ 'id' => 1001, 'name' => '张三', 'sex' => '男' ], 1 => [ 'id' => 2091, 'name' => '李四', 'sex' => '女' ] ];

Assuming that you need to remove the name sex column in the above array, you can directly:

array_walk($list, function (&$item) { $item = array_diff($item, ['name', 'sex']); });

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