陣列基或

Question

按組計數陣列我有這樣的數組：

Array 
(
    [0] => Array 
     (
      [0] => a 
      [1] => a 
      [2] => b 
      [3] => c 
      [4] => b 
      [5] => c 
      [6] => b 
     ) 
) 

所以我有通過用計數總量不使由組陣列。像（輸出）陣列：

a = 2 
    b = 3 
    c = 2 

如果陣列a是使用比的a計數兩次將2。

Answer 1

使用此：

array_count_values(array) 

例：

<?php 
$a=array("Cat","Dog","Horse","Dog"); 
print_r(array_count_values($a)); 
?> 

輸出：

Array ([Cat] => 1 [Dog] => 2 [Horse] => 1) 

Answer 2

複製粘貼代碼，

<?php 
$rt=Array(Array('a','a','b','b','c','c')); 
$out=array_count_values($rt[0]); 
print_r($out) ; 
?> 

輸出

Array 
(
[a] => 2 
[b] => 2 
[c] => 2 
)