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@@ -644,7 +644,7 @@ if ($show_results) {
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$choice = $arr[1];
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$tmp=strrpos($choice[$j],' / ');
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- $choice[$j]=substr($choice[$j],0,$tmp);
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+ $choice[$j]=api_substr($choice[$j],0,$tmp);
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$choice[$j]=trim($choice[$j]);
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//Needed to let characters ' and " to work as part of an answer
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