Auto correct in function calls?

I noticed a strange behaviour while this Excercise: https://www.codecademy.com/courses/learn-php/lessons/logical-operators-and-compound-conditions/exercises/the-not-operator

When I call th function with a typo in my function call:

The function ist still executed. O_o

Is there something like auto-correct in PHP or the codecademy Plattform?

Not so much auto-correct, rather the fact that function names are case-insensitive in PHP.

Function names are case-insensitive for the ASCII characters A to Z , though it is usually good form to call functions as they appear in their declaration.
http://www.php.net/manual/en/functions.user-defined.php

So that’s for function names. Note that variables names, however, are case-sensitive.

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Ah got it :slight_smile: Thanks alot!

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