Cannot use string offset as an array in php

Question

I\'m trying to simulate this error with a sample php code but haven\'t been successful. Any help would be great.

\"Cannot use string offset as an array\"

Answer 1

Since the release PHP 7.1+, is not more possible to assign a value for an array as follow:

$foo = ""; 
$foo['key'] = $foo2; 

because as of PHP 7.1.0, applying the empty index operator on a string throws a fatal error. Formerly, the string was silently converted to an array.