PHP - 按字母顺序排序数组值和echo输出字符串

Question

Input Array

$userArr = array("0"=>"Veronica", "1"=>"Alex", "2"=>"Joe", "3"=>"Alex", "4"=>"Veronica");

Here, user Veronica and Alex are repeated twice. How do I sort above array reverse alphabetical way even if count of two users are same i.e. Veronica => 2, Alex => 2, only Veronica will be displayed as output string.

$userArr = array("0"=>"Veronica", "1"=>"Alex", "2"=>"Joe", "3"=>"Alex", "4"=>"Veronica");
$userCnt = array_count_values($userArr);
foreach ($userCnt as $key => $val) {
    echo "$key = $val
";
}

Output:

Veronica

Answer 1

Your Input Array:

$userArr = array("0"=>"Veronica", "1"=>"Alex", "2"=>"Joe", "3"=>"Alex", "4"=>"Veronica");

Count of an array:

echo count($userArr);

Reverse of an array:

arsort($userArr);
print_r($userArr);