Question

我需要计算数组值

$str = '"Cat","A","A","A","A"';

$abc=array($str, "A","Cat","Dog","A","Dog");
print_r(array_count_values($abc));

结果出来了

 Array ( ["Cat","A","A","A","A"] => 1 [A] => 2 [Cat] => 1 [Dog] => 2 )

但是我需要这样：

 Array ( [A] => 6 [Cat] => 2 [Dog] => 2 )

Answer 1

这是因为$str是字符串而不是数组。因此，它作为一个元素添加到$abc数组中。

您可以使用explode函数将其转换为数组：

$str = '"Cat","A","A","A","A"';
$arr = explode(',', $str);
// So $arr is Array([0] => "Cat", [1] => "A", [2] => "A", [3] => "A", [4] => "A")

然后，您需要删除每个元素周围的双引号。我建议使用trim函数和array_map函数将其应用于每个元素：

$arr = array_map(function ($item) { return trim($item, '"'); }, $arr);
// $arr is Array([0] => Cat, [1] => A, [2] => A, [3] => A, [4] => A)

然后您可以将其与其余值合并：

$abc = array_merge($arr, array("A","Cat","Dog","A","Dog"));
print_r(array_count_values($abc));
// Should be Array ( [A] => 6 [Cat] => 2 [Dog] => 2 )

Answer 2

那么，不要将字符串放入数组中并期望将其视为数组值。要么将字符串修改为数组，然后合并两个数组，要么解析字符串并将每个值添加到数组中。

对于后一种方法，您可以执行以下操作：

$str = '"Cat","A","A","A","A"';
$abc = array("A","Cat","Dog","A","Dog");
$splitstr = explode(',',str_replace('"','',$str));

$finalarray = array_merge($abc,$splitstr);

print_r(array_count_values($finalarray));

Answer 3

根据PHP manual，您可以使用array_merge ( array $array1 [, array $... ] )

示例：

$str = '"Cat","A","A","A","A"';
$abc=array_merge($str, array("A","Cat","Dog","A","Dog"));
print_r(array_count_values($abc));

Answer 4

您将第一个元素完全放在字符串中。分开

  $str = '"Cat","A","A","A","A"';
  $abc=array(  "Cat","A","A","A","A", "A","Cat","Dog","A","Dog"); 
  print_r(array_count_values($abc));

或合并数组

  $arr1 = ["Cat","A","A","A","A"];
  $abc=array_merge(  $arr1,["A","Cat","Dog","A","Dog"]); 
  print_r(array_count_values($abc));

Demo

Answer 5

您的逻辑有缺陷，您应该首先正确创建数组

$str = '"Cat","A","A","A","A"';
$abc = array("A","Cat","Dog","A","Dog"); 
$splitstr = explode(',',str_replace('"','',$str)); 
$finalarray = array_merge($abc,$splitstr);  

print_r(array_count_values($finalarray));

现在您将获得理想的结果。

Answer 6

您正在使用array_count_values来计算$abc数组的所有值。但是，$str是一个字符串，而不是一个数组，而是$abc数组的一个元素。

最简单的解决方案是通过删除$str双引号（使用"方法）并将str_replace作为分隔符（使用{ {1}}方法）。只需添加以下代码段中的一行即可完成此操作：

您可以看到this script in this link的执行情况。

我需要计算数组值

6 个答案: