What function can be used to sort an array based on the values of the first level while maintaining the connection between the indexes and the new array?

When sorting an array based on the values of the first level, we can use the array_multisort() function in PHP. This function allows us to sort multiple arrays or multi-dimensional arrays based on the values of one or more columns. By using this function, we can maintain the connection between the indexes and the new sorted array. 

// Sample array to be sorted
$array = array(
    array("name" => "John", "age" => 30),
    array("name" => "Alice", "age" => 25),
    array("name" => "Bob", "age" => 35)
);

// Extract the values to be sorted
$sort_values = array_column($array, 'age');

// Sort the array based on the extracted values
array_multisort($sort_values, $array);

// Output the sorted array
print_r($array);

Keywords

array_multisort array_values array_keys sorting indexes

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