php统计数组元素个数的方法

  $array=array(4,5,1,2,3,1,2,1);  $ac=array_count_value($array);

            关键字    值             4     1           5     1           1     3           2     2           3     1

$arr = array(      '1011,1003,1008,1001,1000,1004,1012',      '1009',      '1011,1003,1111'    );$result = array();foreach ($arr as $str) {  $str_arr = explode(',', $str);  foreach ($str_arr as $v) {    $result[$v] = isset($result[$v]) ? $result[$v] : 0;    $result[$v] = $result[$v] + 1;  }}print_r($result);