Defining values to specific indexes of a multidimensional array [duplicate] - php

Question

This question already has answers here:
How to access and manipulate multi-dimensional array by key names / path?
(10 answers)
Closed 1 year ago.
I'm trying to create a function that will assign new values to a specific indexes in a multidimensional array:
I Have the array that looks like this:
data[i]['checkin'];
data[i]['checkout'];
data[i]['content'][x]['price'];
data[i]['content'][x]['profit'];
data[i]['content'][x]['exchangerate'];
first parameter of my function will get the array, And second parameter will get the indexes that I want to redefine:
For example:
function defineNewValues(&$arr, $keys) {
//logic
}
Call the function:
defineNewValues($myArray, [
'data.*.content.*.price' => 0,
'data.*.content.*.profit => 0,
]);
Im beliving that recursion is the key for my problem ,
But not really know how to solve it.
Thank You.

Answer 1

could something like this be okay?
I only ask you to study this code not to implement it, for the simple reason that in the future you may have the same type of problem.
function setValue($key,$value,&$array){
$find_parts = explode(".", $key);
$find = $find_parts[0]??null;
if ($find!=null){
if ($find == "*"){
array_shift($find_parts);
foreach($array as &$sub_array){
setValue(implode(".",$find_parts),$value,$sub_array);
}
}else{
if (count($find_parts)>1){
if (array_key_exists($find,$array)){
array_shift($find_parts);
setValue(implode(".",$find_parts),$value,$array[$find]);
}
}else{
if (array_key_exists($find,$array)){
$array[$find] = $value;
}
}
}
}
}
function defineNewValues(&$arr, $keys) {
foreach($keys as $key=>$value){
setValue($key,$value,$arr);
}
}
$myArray=[
"data"=>[
"a"=>[
"content"=>[
"aa"=>[
"price" => 3,
"profit" => 2,
"other" => 1
],
"ab"=>[
"price" => 3,
"profit" => 2,
"other" => 2
]
]
],
"b"=>[
"content"=>[
"ba"=>[
"price" => 3,
"profit" => 2,
"other" => 4
],
"bb"=>[
"price" => 3,
"profit" => 2,
"other" => 5
]
]
],
]
];
defineNewValues($myArray, [
"data.*.content.*.price" => 0,
"data.*.content.*.profit" => 0,
]);
print_r($myArray);
/* OUTPUT
Array
(
[data] => Array
(
[a] => Array
(
[content] => Array
(
[aa] => Array
(
[price] => 0
[profit] => 0
[other] => 1
)
[ab] => Array
(
[price] => 0
[profit] => 0
[other] => 2
)
)
)
[b] => Array
(
[content] => Array
(
[ba] => Array
(
[price] => 0
[profit] => 0
[other] => 4
)
[bb] => Array
(
[price] => 0
[profit] => 0
[other] => 5
)
)
)
)
)
*/

Answer 2

Because the keys you want to replace only occur at one level of the data, the solution doesn't really need to take the entire array structure into account. You can just replace every price and profit key.
array_walk_recursive($example, function(&$value, $key) {
if (in_array($key, ['price', 'profit'])) {
$value = 0;
}
});
Based on your comment on the other answer, my opinion on the "correct and professional way" is that we should try to solve the problem in the simplest way possible, because simple solutions are easy to maintain.