合併兩個數組，其中密鑰匹配

Question

我有兩個匹配鍵的數組，我需要將兩者的值合併到一個新的數組中。我正在努力弄清楚這一點。我怎樣才能做到這一點？

$options = array(
    "0" => true, 
    "1" => true, 
    "2" => false, 
    "3" => true 
); 

$columns = array(
    "0" => "first", 
    "1" => "last", 
    "2" => "id", 
    "3" => "group" 
); 

$what_I_need = array(
    "first" => true, 
    "last" => true, 
    "id" => false, 
    "group" => true 
); 

Answer 1

$whatYouNeed = array_combine($columns, $options); 

這是假設的陣列是正確的順序。否則：

$whatYouNeed = array(); 
foreach ($columns as $key => column) { 
    $whatYouNeed[$column] = $options[$key]; 
} 

Answer 2

$what_I_need = array_combine($columns , $options); 

array_combine

Answer 3

array array_combine (array $keys , array $values); 

$newArray = array_combine($columns, $options); 
print_r($newArray); 

應該給你：

array(
    "first" => true, 
    "last" => true, 
    "id" => false, 
    "group" => true 
); 

PHP array_combine