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php-Arrays函数-array_count_values-统计数组中所有值的出现次数

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Release： 2016-06-13 10:49:39
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array_count_values() 函数

【功能】
         该函数将返回一个数组，
         该数组用input数组中的值作为键名，
         该值在input数组中出现的次数作为值
【使用范围】
         php4、php5
【使用】
         array array_count_values( array input )
         input/必需/被统计的数组
【示例】
[php]
        $arr = array( "key1" => "val1", "key2" => "val2", 
                      "key3" => "val1", "key4" => "val4" ); 
        print_r( array_count_values( $arr ) ); 
/*
Array
(
    [val1] => 2
    [val2] => 1
    [val4] => 1
)
*/ 

 


摘自 zuodefeng的笔记

Related labels：
count value Appear function array frequency of statistics
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