PHPで配列要素の数を数える方法

＆lt; p＆gt;＆lt;？php
$ 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);
echo '';
$ set=array();
array_walk($arr,function($c) use (&$set ) {
 $elements=explode(',',$c);
 array_walk($elements,function($d) use (&$set){
 isset($set[$d]) $set[$d]++:$set[$d]=1;

 });
});
 print_r($set);
echo '';
$arr[0] = array(1011,1003,1008,1001,1000,1004,1012);
$arr[1 ] = 1009;
$arr[2] =array(1011,1003,1111);
function m2s($arr){
static $new_arr = array();
foreach($arr as $k=>$v ){
if(is_array($v)){
m2s($v);
}else{
$new_arr[]=$v;
}
}
return $new_arr;
}
$arr_ = m2s($arr);
print_r(array_count_values ($arr_));