PHP 7.2 count（）函数不起作用 [英] PHP 7.2 count() function is not working

问题描述

我有一个运行中的php应用程序，并且在php 7.0版本上运行良好。但是当我将php版本升级到7.2时。我收到此错误：

I have a working php application and it is running fine on php 7.0 version. But when I upgrade a php version to 7.2. I am getting this error:

count(): Parameter must be an array or an object that implements Countable

在将我的数据与count函数进行比较时，代码出现错误。例如，这是我的代码：

I am getting errors on code where I am comparing my data with count function. For example this is my code:

$keytest = KeyUser::where('key', '=', $key)->first();
 if (count($keytest) == 1) {
   //logic ... 
  }

我正在使用laravel在运行查询的地方进行计数，如果它等于1，则逻辑应该起作用。

I am using laravel where I am running a query and counting it if it is equal to 1 then logic should work.

所以我的问题是我已经在许多控制器上编写了这种逻辑，如果我必须一一更改所有内容，那可能会成为噩梦。所以有什么办法可以写一个全局函数来使计数工作，因为它在php旧版本中工作。什么是最简单的解决方法。

So my problem is I have written this kind of logic on many controllers and if I have to change everything one by one it could become nightmare. So is there any way where I can write a global function to make count work as it was working in php older version. What can be the easiest fix.

推荐答案

可以使用禁用错误处理来解决此问题。请参考此链接以获取解决方案： Laravel与php 7.2不兼容

This problem can be handle using disable error handling. Please refer this link for solution: Laravel not compatiable with php 7.2

在这里我找到了解决您的问题的方法，只需在您的控制器内部编写此代码，或者如果您想使其适用于整个应用程序，则在route.php中编写以下代码：

Here I found a solution to your problem simply write this code inside your controller or if you want to make it work for whole application write this code in route.php:

 //app/Http/routes.php

 if (version_compare(PHP_VERSION, '7.2.0', '>=')) {
// Ignores notices and reports all other kinds... and warnings
error_reporting(E_ALL ^ E_NOTICE ^ E_WARNING);
// error_reporting(E_ALL ^ E_WARNING); // Maybe this is enough
}

我知道这不是最好的解决方案，但是它可以是一个很好的技巧。

I know this is not the best solution but it can be a good hack.

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