fix datatype mismatch warnings
fix datatype mismatches
fix datatype mismatch warning
fix datatype mismatch warnings
fix datatype mismatch warnings
fix datatype mismatch warnings
fix datatype mismatches

and convert len args to size_t where the underlaying API uses zend_string
fix datatype mismatches

and convert APIs to size_t where zend_string internally used
fix datatype mismatches
fix datatype mismatch warnings