如何使用自定义键循环数组

Question

How can I loop through an array with a custom key:

$sql = "Select * from Users";
$result = mysql_query($sql, $db);

$rows = array();
while($list = mysql_fetch_assoc($result)) {
 $rows['customKey'] = array(0, 1, 2, 3);
 $rows[] = $list;
}

Then I pass this to another array

foreach($rows as $row) {
 $array = array (
  'test' => $row,
  'test2' => $row['userName'] 
)
}

Then I print $array

print_r($array['test']);

returns

Array ( [id] => 1 [userName] => John Smith ) 

why is it not getting $rows['customKey'] here.

Note: I know i need to stop using mysql_* .. this is a legacy application.

Answer 1

Change your line:

$rows['customKey'] = array(0, 1, 2, 3);

to:

$list['customKey'] = array(0, 1, 2, 3);