<?php

/**

 * PHP获取数组中最后一个元素下标和值

 */

$arr = ['1' => 'name', '3' => 2, 5 => 6, 'name' => '张三'];

$a = end($arr);

echo $a;

echo "<br>";

foreach ($arr as $k => $v) {

    if ($v === $a) {

        echo $k;

    }

}