检查多个字符串是否为空

本文介绍了检查多个字符串是否为空的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

可能重复: 更简洁的方法检查数组是否仅包含数字(整数) PHP检查是否为空字段

Possible Duplicate: More concise way to check to see if an array contains only numbers (integers) PHP checking if empty fields

我有一个提交10个字段的表单，应该填写其中7个，这就是我现在在PHP中检查它的方式:

I have form that submits 10 fields, and 7 of them should be filled, here is how i chek it now in PHP:

if (!$name || !$phone || !$email || !$mobile || !$email || !$state || !$street || ! $city) { echo '<div class="empty_p">You have empty fields!!!</div>';} else{ //process order or do something }

我的问题是:还有更简单的方法吗?因为有时候我还要检查更多的字符串(12-15)

My question is: is there more simple way to do this? Because sometimes I have even more strings to check (12-15)

推荐答案

<input type="text" name="required[first_name]" /> <input type="text" name="required[last_name]" /> ... $required = $_POST['required']; foreach ($required as $req) { $req = trim($req); if (empty($req)) echo 'gotcha!'; }

/*更新*/

好！伙计们，容易...

OK! guys, easy...

您可以使它更安全，就像类型转换一样，就像我们程序员为处理即将到来的数据(例如$id = (int) $_GET['id']，$username = (string) addslashes($_POST['username'])等)所要做的一样……

You can make it more secure, just with type casting as all we programmers do for out coming data, like $id = (int) $_GET['id'], like $username = (string) addslashes($_POST['username']) and so on...;

$required = (array) $_POST['required'];

然后，无论来自发布字段的内容是什么，这些代码都只是在寻找所需内容. 这就对了！嗯...

And then, what ever comes from post fields let them come, this code just seek what it need. That is it! Uhh...