$a1[] = 1;
$a1[] = 1;
$a1[] = 1;$a2[] = 1;
$a2[] = 1;
$a2[] = 1;$i = 1;
$rand[1] = $a1; // 注意的地方
$rand[2] = $a2;$cnt = count($rand[$i]);
echo $cnt;
$a1[] = 1;
$a1[] = 1;$a2[] = 1;
$a2[] = 1;
$a2[] = 1;$i = 1;
$rand[1] = $a1; // 注意的地方
$rand[2] = $a2;$cnt = count($rand[$i]);
echo $cnt;
my_count($var)
{
$temp = a.$var;
return count($$temp);
}
echo count($$value);
if($i=0,1,2.....){
echo count(${"a".$i});}