$playerPiece = $markers[rand $totalMarkers]# randomly choose x or o fo
+r player.
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Add a semicolon before the #.

else if

Change it to "elsif".

Not a syntax error, but you probably should change:

if($input eq("quit" || "exit")){ # Checks what word is.
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to:

if($input eq "quit" || $input eq "exit")){ # Checks what word is.
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