I want to sort an array of rows by the `name` column value, but critically I want to sort while ignoring the users' prefixes.

Sample array:

```
$ad_users = [
    ["name" => "Mr San", "department" => "five"],
    ["name" => "Mr VSan", "department" => "six"],
    ["name" => "Mr QSan", "department" => "four"],
    ["name" => "Sr ASan", "department" => "two"],
    ["name" => "Dr ASan", "department" => "one"],
    ["name" => "Dr FSan", "department" => "three"]
];

```

Desired result:

```
[
    ["name" => "Dr ASan", "department" => "one"],
    ["name" => "Sr ASan", "department" => "two"],
    ["name" => "Dr FSan", "department" => "three"],
    ["name" => "Mr QSan", "department" => "four"],
    ["name" => "Mr San", "department" => "five"],
    ["name" => "Mr VSan", "department" => "six"]
]

```

My current code:

```
for ($x = 0; $x < count($ad_users); $x++) {
    $ad_users[$x]['name']= ucwords($ad_users[$x]['name']);
    $end = (explode(',', $ad_users[$x]['name']));
    $lastname = array_pop($end);
    sort($end);
    $firstname = implode(" ", $end);
    $ad_users[$x]['name']=$lastname." ".$firstname;
}
sort($ad_users);
for ($x = 0; $x < count($ad_users); $x++) {
    echo $ad_users[$x]['name']."\n";
}

```