Quick and probably dumb question about _filelisttoarray

[sonicxtacy02]

i cant seem to understand why _filelisttoarray is creating an array successfully in my script yet i cant access one of the arrays elements. The below script errors out with "Subscript used with non-array variable". However if i skip trying to define $trackfilename the script writes from the array as intended. Any help?

if fileexists($folder&"*.mp3") or fileexists($folder&"*.wma") or FileExists($folder&"*.flac") Then
        if fileexists($folder&"album.m3u") then filedelete($folder&"album.m3u")
        $listarray=_FileListToArray($folder,"*.mp3")
        $trackfilename=$listarray[1]
        $trackfilesplit=stringsplit($trackfilename, "-")
        $artist=$trackfilesplit[1]
        _FileWriteFromArray($folder&"album.m3u", $listarray)
    Else
        $artist="Unknown"
    EndIf

[DW1]

are you sure its not stored in $listarray[0] instead of $listarray[1] ???

[PsaltyDS]

i cant seem to understand why _filelisttoarray is creating an array successfully in my script yet i cant access one of the arrays elements. The below script errors out with "Subscript used with non-array variable". However if i skip trying to define $trackfilename the script writes from the array as intended. Any help?

Put in some error handling:

if fileexists($folder&"*.mp3") or fileexists($folder&"*.wma") or FileExists($folder&"*.flac") Then
    if fileexists($folder&"album.m3u") then filedelete($folder&"album.m3u")
    $listarray=_FileListToArray($folder,"*.mp3")
    If @error or $listarray[0] = 0 Then 
        MsgBox(16, "Error", "Error listing files: " & $folder & "*.mp3, @error = " & @error)
    Else
        $trackfilename=$listarray[1]
        $trackfilesplit=stringsplit($trackfilename, "-")
        $artist=$trackfilesplit[1]
        _FileWriteFromArray($folder&"album.m3u", $listarray)
    EndIf
Else
    $artist="Unknown"
EndIf

That will at least give you some info on the error.

[PsaltyDS]

are you sure its not stored in $listarray[0] instead of $listarray[1] ???

The [0] element is always the count in the array returned from _FileListToArray(). However, if no matching files are found, [0] = 0, and there is no [1].

[sonicxtacy02]

The [0] element is always the count in the array returned from _FileListToArray(). However, if no matching files are found, [0] = 0, and there is no [1].

i found the issue with some suggested error checking.. the problem wasnt that the variable wasnt an array... it was in my loop the test condition failed which caused the array to not be created.. hence the reason for the subscript error. thanks for the assist guys