php 统计一维数组中重复的元素个数

<?phpecho "<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)
<?phpecho "<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);