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HomeBackend DevelopmentPHP Tutorial请问下这样的例子如何正确索引表单数组

感觉说起来有点绕,这样吧,我把遇到的这个问题说明下
客户端表单有多个数组,比如item数组,info数组,例如:







现在要验证表单,这4个项都要必填

我后台封装了一个函数,直接验证$_REQUEST['id'] 为空即可
但是遇到数组就很麻烦,因为函数的原因,传值的时候是这样传的

function validator($name){
    判断$_REQUEST['$name']是否为空
}

validator(‘id’),这样就比较好操作
如果不是表单数组还好,表单数组就非常麻烦,需要,把元素正确的索引才可以

现在我想问的是如何操作可以实现这样的效果
validator('item["title"]')

函数内可以正常的索引为
$_REQUEST['item']['title']

无论数组层数,只要传进去正确的数组元素字符串,就可以正确索引该元素的表单项,找不到这样的函数,只能用拆解字符串的办法,不知道有没有更好的办法

说白了就是如何正确的获取到未知的item和数组索引title,当然这是个2层的范例,如果能实现更多层更好


回复讨论(解决方案)

貌似没有办法通过数组的函数实现这个

array_walk_recursive 应该就可以了
关键在与判空后的操作

array_walk_recursive 传入的是数组,关键是传入的是表单数组中的元素,字符串居多

$ar = array(  'item' => array('title' => '', 'intro' => ''),  'info' => array('userid' => '', 'username' => ''),);function validator($v, $k) {  if(empty($v)) echo "$k 不能为空\n";}array_walk_recursive($ar, 'validator');
title 不能为空intro 不能为空userid 不能为空username 不能为空

当然打印的内容多半不符合你的要求
所以我说“关键在与判空后的操作”

明白了,谢谢,是全部读取判断

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