<?php$arr = array(6,8,8,2,3,2,‘a‘,‘a‘,3);$res = array_count_values($arr);var_dump($res);
打印结果:array(5) { [6]=> int(1) [8]=> int(2) [2]=> int(2) [3]=> int(2) ["a"]=> int(2) }
PHP 常用函数
原文：https://www.cnblogs.com/clubs/p/8973318.html
