Calling method within class does not work

Why is this function not executed and no error reported? This code seems to be directly bypassed and the subsequent output "bbbbbb"

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Why is this function not executed and no error reported? This code seems to be directly bypassed and the subsequent output "bbbbbb"

Maybe the check_user method in your screenshot was not executed at all? Your code looks like it belongs to ecshop or something like that. I guess you found the wrong file.