Subscript used on non-accessible variable

[PunkoHead]

Hello Guys,

I am trying (again) to automate something for my colleagues and I do not understand why is this appearing. Could you please check my code?

I am giving you just a small part of it but it should be enough.

;I am using the FF.au3 since I need to automate FireFox
$currentIRISURL = _FFCmd(".location.href") ;This works the same way as _IEPropertyGet($oIE, "locationurl")
Global $pages = _StringBetween($currentIRISURL, "page=", "&search")
MsgBox(1, "", $pages[0])

This is where the script ends with the error: : ==> Subscript used on non-accessible variable.:

MsgBox(1, "", $pages[0])
MsgBox(1, "", $pages^ ERROR

Do you have any ideas?

Edited January 26, 2018 by PunkoHead

[PunkoHead]

Resolved it, I was not getting any results for $pages.

[BrewManNH]

You need to do some error checking in there.

;~ I am using the FF.au3 since I need to automate FireFox
$currentIRISURL = _FFCmd(".location.href") ;This works the same way as _IEPropertyGet($oIE, "locationurl")
; check here to see if you have anything returned by the previous command, I don't know what it returns or what errors you might get
Global $pages = _StringBetween($currentIRISURL, "page=", "&search")
If Not @error Then
    MsgBox(1, "", $pages[0])
Else
    MsgBox(1, "", "Not found")
EndIf