php-Arrays函数-array_count_values-统计数组中所有值的出现次数
- WBOYOriginal
- 2016-06-13 10:49:391076browse
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
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