Code Duplication    Length = 4-4 lines in 2 locations

web_interface/astpp/application/modules/invoices/controllers/invoices.php 2 locations

@@ 857-860 (lines=4) @@
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		  // echo $this->db->last_query(); exit;
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		  }
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		if($amount > $debit){
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		  $this->session->set_flashdata('astpp_notification', 'Invoice payment amount should be higher then the invoice amount.');
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		  redirect(base_url().'invoices/invoice_summary/'.$invoice_id);
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		}               
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			$payment_trans_array = array("accountid"=>$response_arr["custom"],"amount"=>$response_arr["payment_gross"],
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				"tax"=>"1","payment_method"=>"Paypal","actual_amount"=> $amount,"paypal_fee"=>  $paypalfee,
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				"user_currency"=>$currency["currency"],"currency_rate"=>$currency["currencyrate"],"transaction_details"=>json_encode($response_arr),"date"=>$date);
@@ 979-982 (lines=4) @@
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		  // echo $this->db->last_query(); exit;
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		  }
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		if($amount > $debit){
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		  $this->session->set_flashdata('astpp_notification', 'Invoice payment amount should be higher then the invoice amount.');
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		  redirect(base_url().'invoices/invoice_summary/'.$invoice_id);
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		}
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		$debit_amount = "0.00";