How to detect whether a value has been assigned to an array element

[c.haslam]

Consider this code:

CODE

Global $ar[100]

$ar[49] = 23

MsgBox(0,"",IsDeclared("ar[49]"))

MsgBox tells me that $ar[49] has not been assigned a value.

How can I detect that it has been assigned a value?

...chris

[Andreik]

Consider this code:

CODE

Global $ar[100]

$ar[49] = 23

MsgBox(0,"",IsDeclared("ar[49]"))

MsgBox tells me that $ar[49] has not been assigned a value.

How can I detect that it has been assigned a value?

...chris

I don't know if you choose the right function. IsDeclared check if a variable has been declared not if a value is assign.

Eventually you can use Eval function().

Edited September 13, 2008 by Andreik