i have problem in line with ea mql4

[صابر م.امیری]

'&&' - illegal operation use once per bar expert.mq4 3115 39

[William Roeder]

صابر م.امیری:

'&&' - illegal operation use once per bar expert.mq4 3115 39

            if (StringLen(symbol)>6 && StringSubstr(symbol, StringLen(symbol)-2=="bo")) {

What does 4 == "bo" mean?	StringLen(symbol) -2 == "bo"

[Alain Verleyen]

Please don't post randomly in any section. Your question is not related to the section you posted.

MT4/mql4 has it's own section on the forum.

I have moved your topic to the correct section later, please don't create an other topic.