Unable to insert PowerShell variables from array into Invoke-Sqlcmd call - powershell

Question

I have an array that loops through a string assigning values to elements. If I then assign those elements to a variable and pass that variable into the invoke-sqlcmd I get an error. However, if I assign the value directly to the variable and pass it in it works fine:
Assign value to array:
for ($i=0; $i -lt $somearray.length; $i++) {
$somearray[$i] = $somearray[$i].Replace('$(query)', $query.text)
}
Lets say somearray[0] = "select * from DB". We'll assign to a variable:
$query = somearray[0]
Now I pass this to my Invoke-Sqlcmd:
Invoke-Sqlcmd -Query $query -Database "local" -ServerInstance "somedb" |
Export-Csv ".\somefile.csv"
This fails:
Invoke-Sqlcmd : Could not find stored procedure 'select * from ALERTS'.
At C:\Migration\ExportTool\ExportTool\Gavs.ps1:95 char:17
+ ... Invoke-Sqlcmd -Query $query -Database $db -ServerInstance ...
However, if I do this:
$query = "select * from DB"
Invoke-Sqlcmd -Query $query -Database "local" -ServerInstance "somedb" |
Export-Csv ".\somefile.csv"
it works perfectly.

Answer 1

So the reason appears to be, if you do this:
$query = somearray[0]
When you view $query in the Invoke-sql command it looks like this:
"select * from DB"
And when you do this:
$query = "select * from DB"
It looks like this:
select * from DB
So directly referencing a string removes the quotes in the Invoke-sqlcmd command. Seems very odd.
Hope this helps someone in the future.