cannot find undefined function array_except() in laravel

Upgrading an old application I inherited I run in quite some trouble.

Being new in php frameworks I am learning a lot.. Now, upgrading form laravel 5.8 to 6 I got the error:

"Call to undefined function array_except() " with reference to login/register.blade.php

I cannot find the "array_except()" anywhere in my whole application.

can someone help me and explain how I can solve this (and similar problems)

Solution

The function seems to be replaced from version 5.7 with Arr::except

https://laravel.com/docs/6.x/helpers#method-array-except

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