this is merged in the head , also it should be merged in 5.4 and 5.3

https://github.com/php/php-src/pull/172

I'm thinking if din't do a mistake by allowing - in the params

I will recheck my patch from last year

http://marc.info/?l=php-cvs&m=132500469221878

for example - is an operator and when you need to substract it what happens ?

select * from employess where :salary-2 > 1000