Hello all, I met a very strange problem today. Take a look at the codes below: for ($i = 'A'; $i < 'Z'; $i++) { echo $i . ' '; } If you think the output is A-Z, please run it on your server and try. Who can tell me why the result is not A-Z? -- Zhang Xiao Junior engineer, Web development Ethos Tech. http://www.ethos.com.cn