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Added some type checks
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@ -48,7 +48,7 @@ class AsyncMultipleQueue extends Thread{
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$str = "";
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while(!isset($str{$len - 1})){
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$str .= $this->input{0};
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$this->input = substr($this->input, 1);
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$this->input = (string) substr($this->input, 1);
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}
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return $str;
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}
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