php isset() equivalent in mql4

[Azael05x]

So I found out that when terminal is saying "Waiting for refresh" (When chart disappears), and is tick, my Expert Advisor is throwing array out of bounds error on Time[0] array. and then EA stops working, so how can I check this array before using it if array exists. who are familiar with php - the function I'm looking for is isset()...

[Azael05x]

Of course I could take out #property strict but that's not the solution I'm looking for

[William Roeder]

Azael05x: So I found out that when terminal is saying "Waiting for refresh" (When chart disappears), and is tick, my Expert Advisor is throwing array out of bounds error on Time[0] array.	Don't look at the predefined variables in OnInit(). Wait for the first tick in OnTick().

[Azael05x]

damn, of course I'm not doing that.. I'm trying to make access to them from onTick() that's the funny part.

As I said my EA is working fine till that damn moment when chart is disappearing for refresh, then it throws that error on Time[0] variable... how can I avoid that?

[Alain Verleyen]

Azael05x:

damn, of course I'm not doing that.. I'm trying to make access to them from onTick() that's the funny part.

As I said my EA is working fine till that damn moment when chart is disappearing for refresh, then it throws that error on Time[0] variable... how can I avoid that?

ArraySize() maybe ?

[William Roeder]

Azael05x: then it throws that error on Time[0] variable... how can I avoid that? angevoyageur: ArraySize() maybe ?	If Time[0] throws an error, there's a problem with the terminal. Don't try to band over it. Write the service desk.