将数组分配给另一个数组值

Question

Lets say i have this array:

$first = ['hi', 'by', 'nice']

I am going to assign another array to this array items.In fact doing a foreach loop and due to situation assign a new array to desired array item. Now i want turn it to this:

$second = ['hi', 'by' => ['really' => 'yes'], 'nice']

How can i do it programmatically?

Answer 1

Try this

$first = ['hi', 'by', 'nice'];

foreach( $first as $key => $value )
{
    $second[] = $value;
    if( $value == 'by' )
    {
        $second[ $value ][] = array( 'really' => 'yes' );
    }
}
var_dump( $second );

Output:

array(4) {
  [0]=>
  string(2) "hi"
  [1]=>
  string(2) "by"
  ["by"]=>
  array(1) {
    [0]=>
    array(1) {
      ["really"]=>
      string(3) "yes"
    }
  }
  [2]=>
  string(4) "nice"
}