How to combine multiple arrays into an array, merging two-dimensional arrays with the same key

The array is like this

Now want to do the following effect

Great gods, help me.

Reply content:

The array is like this

Now want to do the following effect

Great gods, help me.

Append array
The array_merge_recursive () function is the same as Array_merge () and can combine two or more numbers together to form an array of unions. The difference between the two is that when a key in an input array is already in the result array, the function takes a different approach. Array_merge () overrides the previously existing key/value pair, replacing it with the key/value pair in the current input array, and array_merge_recursive () merges two values together to form a new array with the original key as the array name. There is also the form of an array merge, which is a recursive append array. The form is:
Array_merge_recursive (array Array1,array array2[...,array Arrayn])

The program examples are as follows:

' $fruit 1 = array ("Apple" = "red", "banana" = "yellow");
$fruit 2 = Array ("pear" + "yellow", "apple" = "green");
$result = array_merge_recursive ($fruit 1, $fruit 2);
Print_r ($result);

Output
Array ([Apple] = Array ([0] = red [1] = = green) [Banana] = yellow [pear] = yellow) '

Array_merge

array_merge_recursive

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