How to add array elements in two dimensions in php

php method to add array elements in two dimensions: first create a two-dimensional array "$consult"; then append the elements of "$arr" to the front of "$consult".

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

php appends elements to a two-dimensional array, php two Method of adding array elements to the dimension

Previous data processing:

After processing:

   //$consult 为往里插之前的数组
        //把$arr的元素追加到$consult的最前面
        $arr = [];
        $arr[0]['workplaceId'] = '0';
        $arr[0]['workplaceName'] = '信息部';
        $arr[0]['List'] = [['typeId' => 3, 'typeName' => '全部']];
        array_walk($arr,function($item) use (&$consult) {
            array_unshift($consult, $item);
        });

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