php 统计一维数组中重复的元素个数

<?php
echo "<pre>";
$array = array(1, 1, 1, 54, 3,4, 3,4, 3, 14, 3,4, 3,7,8,9,12,45,66,5,7,8,9,2,45);

$a =0;
foreach ($array as $str) {
@$result[$str] = $result[$str] + 1;
$a = $a + 1;
}
echo $a;
print_r($result);

25Array
(
[1] => 3
[54] => 1
[3] => 5
[4] => 3
[14] => 1
[7] => 2
[8] => 2
[9] => 2
[12] => 1
[45] => 2
[66] => 1
[5] => 1
[2] => 1
)

<?php
echo "<pre>";
$array = array(1, 1, 1, 54, 3,4, 3,4, 3, 14, 3,4, 3,7,8,9,12,45,66,5,7,8,9,2,45);

foreach ($array as $str) {

@$result[$str] = $result[$str] + 1;
//$result[1] = 0 + 1;
//$result[1] = 1 + 1;
//$result[1] = 2 + 1;
//$result[54] = 0 + 1;
//$result[3] = 0 + 1;

}

print_r($result);