boolean-operations
Why am I getting error "Call to a member function getInvoiceID() on boolean" in PHP?
Hi. I would like to know the theory behind why this error occurs.
"Call to a member function getInvoiceID() on boolean".
Is it because the datatype does not match with the returned function getInvoiceID()?
Solution
My guess is because you called getInvoiceID() on an boolean, not an object. Check your variable assignment, it may be caused by a function that return boolean on fail instead of object. Please provide your code.
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