错误舍入和乘以

Question

我希望能够以下列方式使用array_count_values后array_count_values返回：

$roundedans = 10 * round($groupdiff, 1); 
$diffarray[] = $roundedans; 

print_r(array_count_values($diffarray)); 

的前两行是一个while循环插入$ roundedans到阵列中的一部分， array_count_values在循环之外被调用。

当我尝试运行代码我得到这个错误：

Warning: array_count_values() [function.array-count-values]: Can only count STRING and INTEGER values! in... 

这是即使我已经转换所有值的整数乘以10

任何帮助将不胜感激。

这是只是print_r的输出：

Array ([0] => 6 [1] => 15 [2] => 8 [3] => 13 [4] => -60 [5] => 1 [6] => -61 [7] => 7 [8] => 49 [9] => 26 [10] => -3 [11] => -66 [12] => 20 [13] => 10 [14] => 6 [15] => -94 [16] => -1 [17] => -6 [18] => -19 [19] => -1 [20] => 48 [21] => -4 [22] => 45 [23] => 21 [24] => -11 [25] => 19 [26] => 1 [27] => -10 [28] => 4 [29] => -14 [30] => 26 [31] => -1 [32] => -20 [33] => 8 [34] => -17 [35] => -2 [36] => -6) 

没有非整数。

Answer 1

用途：

$diffarray[] = intval($roundedans); 

圆形（）总是返回浮点数，如果你有10

INTVAL（乘以种类不会改变）将改变类型。