如何按定义的特定顺序对数组进行排序？

Question

I want to order an array in a specific order, which I define.

I've started building a function to order those arrays, but I'm stuck and I have no clue how to solve it.

My current code:

public function order_spells($champions) {

    foreach(array_keys($champions) as $champion){

        if(isset($champions[$champion]['Passive']) || isset($champions[$champion]['Q']) || isset($champions[$champion]['W']) || isset($champions[$champion]['E']) || isset($champions[$champion]['R'])) {

            foreach(array_keys($champions[$champion]) as $Spell_Icon) {

                if($Spell_Icon!='General'){ 
                    //echo $Spell_Icon;
                }

            }

        }

    }

}

This is the current array:

And this is the expected output:

Since I'm stuck with my current code above, I will try to isolate and simplify my problem and show it to you.

So as a simple example I have an array like this:

$champions = [
    "A" => 1,
    "C" => 2,
    "F" => 3,
    "B" => 4,
    "G" => 5,
    "D" => 6,
    "E" => 7,
];

Now I want to define the order of that array, eg First key F , then D and so on... How can I change my above code to get it to work as I want it to ? Or how can I order this example array here?

Another twist to mention here is, that the order maybe has more elements than the array itself. Eg

Order: C,D,A,B
Array: A,B,C

Answer 1

Just pop off the last element of your array with array_pop() and put it again at the start of the array, eg

$arr = array_pop($champion["Ashe"]);
$champion["Ashe"] = ["E" => $arr] + $champion["Ashe"];

EDIT:

As from the comments you want to sort your array by a specific order, but you don't know which elements are really in the array and which aren't. So this should work for you:

So basically first you define the order which you want with an array. Then you array_combine() the array with another array, which you fill up with empty values with array_fill() .

Means you will end up with this array, where the order are the keys and all have empty arrays as value, eg

Array (
    [F] => Array ( )  
    [A] => Array ( )
    [B] => Array ( )
    [G] => Array ( )    
    [C] => Array ( )
    [E] => Array ( )
    [D] => Array ( )   
)

Then you can use this array with array_replace() to order the array as you want it. And at the end you can filter the empty arrays out with array_filter() .

Code:

<?php

    $arr = [
        "A" => 1,
        "C" => 2,
        "F" => 3,
        "B" => 4,
        "G" => 5,
        "D" => 6,
        "E" => 7,
    ];


    $order = ["F", "A", "B", "G", "C", "E", "D"];
    $order = array_combine($order, array_fill(0, count($order), []));

    $arr = array_filter(array_replace($order, $arr)); 
    print_r($arr);

?>

output:

Array
(
    [F] => 3
    [A] => 1
    [B] => 4
    [G] => 5
    [C] => 2
    [E] => 7
    [D] => 6
)