If you want to bind a double to a statement, the accepted approach is to bind as a string: http://stackoverflow.com/questions/2718628/pdoparam-for-type-decimal
However, this means that prepared statements see these values as strings. This can cause issues, for example: http://stackoverflow.com/questions/38105900/sqlite-having-comparison-error pdo_mysql will actually watch for doubles, but this code will never be reached since all doubles are cast to strings: https://github.com/php/php-src/blob/3f25c4228a8f505a000c1ea5751062606247349a/ext/pdo_mysql/mysql_statement.c#L563 Is there a reason PDO::PARAM_DOUBLE doesn't exist? Thanks, Adam
