在PHP中获取数组块

Question

Do we have any array function in PHP to get this:

Example:

$array[0] = array("size" => "XL", "color" => "gold");
$array[1] = array("size" => "XLL", "color" => "siver");
$array[2] = array("size" => "M", "color" => "purple");

$color = array();
foreach($arrayas $result)
{       
    $color[] = $result['color'];            
}

I need

$color[0] = "gold";
$color[1] = "silver";
$color[2] = "purple";

Thanks in Advance for your help.

Answer 1

This will do what you're looking for in PHP 5.3+.

$color = array_reduce($array, 
    function($previous, $new) { $previous[] = $new['color'];  return $previous;} 
);

If you're on PHP 5.2, you can define a function elsewhere and pass it in:

function getColor($previous, $new) {
  $previous[] = $new['color'];
  return $previous;
}

$color = array_reduce($array, 'getColor');