php如何数组中输出倒数第二位的值答:<?php arr = array(1,3,4,5,3,5,543,534,5,34,5,345,34,5,234324);arr = array_slice($arr,-2,1);print_r($arr);?>
php 给定一个数如何筛选出一个数组中比这个数大的数 并组成一个新的数 ...答:刚写的例子:<?php$arr = array(2,55,12,36,25,36,54,58,665,6,8,6,7,4,33,12,20);$num = 14;//给定的数$newArr = array();//比num大的数组foreach($arr as $vo){if($vo>$num)$newArr[] = $vo;}var_dump($newArr); ?> ...