How can I create an array from the values of another array's key?

Question

I have an array as follows:

$arr1 = array(
  0 => array(
    \'name\' => \'tom\',
    \'age\' => 22
  ),
  1 => array(
    \'name\' => \'nick\',
           


        

Answer 1

$array = array(0 => array('name' => 'tom', 'age' => 22), 1 => array('name' => 'nick', 'age' => 18));
foreach($array as $arr => $a){
    $names[] = $array[$arr]["name"];
}

print_r($names); //Array ( [0] => tom [1] => nick )