Hi,
I'm a testing a new rendering option for the <math /> element and had problems to store MathML elements in the database field math_mathml which is of type text. The MathML elements contain a wide range of Unicode characters like the INVISIBLE TIMES that is encoded as 0xE2 0x81 0xA2 in UTF-8 or even 4 byte chars like MATHEMATICAL BOLD CAPITAL A 0xF0 0x9D 0x90 0x80 . In some rar cases I had problem to retrieve the stored value correctly from MySQL. To fix that problem I'm now using the PHP functions utf8_encode /decode to which is not a very intuitive solution. Do you know a better method to solve this issue without to change the database layout.
Best Physikerwelt