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php数组函数序列 之array_count_values() 统计数组中所有值出现的次数函数

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Release： 2016-06-13 12:04:33
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array_count_values()定义和用法
array_count_values() 函数用于统计数组中所有值出现的次数。

本函数返回一个数组，其元素的键名是原数组的值，键值是该值在原数组中出现的次数。

语法
array_count_values(array) 参数 描述
array 必需。规定输入的数组。

例子

复制代码 代码如下:


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


输出：

Array ( [Cat] => 1 [Dog] => 2 [Horse] => 1 )
Related labels：
array co count php value Appear function sequence array frequency of statistics
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