Fix PHP 5.2 compatibility issues

shop/settle_toss_common.php

@@ -32,20 +32,61 @@ function write_toss_log($reason, $orderId = '', $status = '')
     }
 }
 
+function g5_toss_http_response_code($code)
+{
+    if (function_exists('http_response_code')) {
+        http_response_code($code);
+        return;
+    }
+
+    $messages = array(
+        200 => 'OK',
+        400 => 'Bad Request',
+    );
+    $message = isset($messages[$code]) ? $messages[$code] : 'Status';
+    header('HTTP/1.1 ' . $code . ' ' . $message);
+}
+
+function g5_toss_json_last_error_msg()
+{
+    if (function_exists('json_last_error_msg')) {
+        return json_last_error_msg();
+    }
+
+    if (!function_exists('json_last_error')) {
+        return 'JSON error';
+    }
+
+    switch (json_last_error()) {
+        case JSON_ERROR_NONE:
+            return 'No error';
+        case JSON_ERROR_DEPTH:
+            return 'Maximum stack depth exceeded';
+        case JSON_ERROR_STATE_MISMATCH:
+            return 'State mismatch';
+        case JSON_ERROR_CTRL_CHAR:
+            return 'Control character error';
+        case JSON_ERROR_SYNTAX:
+            return 'Syntax error';
+    }
+
+    return 'Unknown error';
+}
+
 // 입금통보 결과 데이터 읽기
 $raw = file_get_contents('php://input');
 if ($raw == false) {
     write_toss_log("입력 데이터 읽기 실패");
-    http_response_code(400);
+    g5_toss_http_response_code(400);
     exit;
 }
 
 // json 파싱 체크
 $data = json_decode($raw, true);
 if (!is_array($data)) {
-    $json_error = json_last_error_msg();
+    $json_error = g5_toss_json_last_error_msg();
     write_toss_log("데이터 파싱 실패: " . $json_error);
-    http_response_code(400);
+    g5_toss_http_response_code(400);
     exit;
 }
 
@@ -59,7 +100,7 @@ $TOSS_TRANSACTIONKEY = sql_real_escape_string(isset($data["transactionKey"]) ? $
 // orderId 형식 검증 (영문, 숫자, 하이픈, 언더스코어만 허용)
 if ($TOSS_ORDERID && !preg_match('/^[a-zA-Z0-9_-]+$/', $TOSS_ORDERID)) {
     write_toss_log("잘못된 orderId 형식", $TOSS_ORDERID, $TOSS_STATUS);
-    http_response_code(400);
+    g5_toss_http_response_code(400);
     exit;
 }
 
@@ -78,7 +119,7 @@ if (!$orderResult || $order_info['secret'] !== $TOSS_SECRET) {
     $error_msg = isset($order_info['message']) ? $order_info['message'] : '주문 정보 조회 실패';
     $error_code = isset($order_info['code']) ? $order_info['code'] : 'UNKNOWN_ERROR';
     write_toss_log("주문 정보 조회 실패 - {$error_code} : {$error_msg}", $TOSS_ORDERID, $TOSS_STATUS);
-    http_response_code(400);
+    g5_toss_http_response_code(400);
     exit;
 }
 
@@ -150,7 +191,7 @@ if($TOSS_STATUS == "DONE"){
         $row = sql_fetch($sql);
         if(!$row['od_id']) {
             write_toss_log("주문내역 조회 실패", $TOSS_ORDERID, $TOSS_STATUS);
-            http_response_code(400);
+            g5_toss_http_response_code(400);
             exit;
         }
 
@@ -244,7 +285,7 @@ elseif($TOSS_STATUS == "WAITING_FOR_DEPOSIT")
         $row = sql_fetch($sql);
         if(empty($row['od_id'])) {
             write_toss_log("주문 데이터가 존재하지 않음", $TOSS_ORDERID, $TOSS_STATUS);
-            http_response_code(400);
+            g5_toss_http_response_code(400);
             exit;
         }
         
@@ -415,15 +456,15 @@ if($payLog) {
 
 if ($result)
 {
-    http_response_code(200); // 절대로 지우지마세요
+    g5_toss_http_response_code(200); // 절대로 지우지마세요
     echo "OK";
     exit;
 }
 else
 {
-    http_response_code(400);
+    g5_toss_http_response_code(400);
     echo "FAIL";
     exit;
 }
 
-//*************************************************************************************
+//*************************************************************************************

shop/toss/taxsave_result.php

@@ -61,17 +61,17 @@ $amount = $order_price;
 $type = ($_POST['tr_code'] == '0') ? '소득공제' : '지출증빙';
 $customerIdentityNumber = $_POST['id_info'];
 $orderName = $od_name;
-$customerEmail = $_POST['buyeremail'] ?: $od_email;
-$customerMobilePhone = $_POST['buyertel'] ?: $od_tel;
+$customerEmail = !empty($_POST['buyeremail']) ? $_POST['buyeremail'] : $od_email;
+$customerMobilePhone = !empty($_POST['buyertel']) ? $_POST['buyertel'] : $od_tel;
 
 // 토스페이먼츠 현금영수증 발급 API 호출
-$toss->setCashReceiptsData([
+$toss->setCashReceiptsData(array(
     'orderId' => $orderId,
     'amount' => $amount,
     'type' => $type,
     'customerIdentityNumber' => $customerIdentityNumber,
     'orderName' => $goods_name,
-]);
+));
 $toss_result = $toss->issueCashReceipt();
 
 /*
@@ -199,4 +199,4 @@ function showreceipt() // 현금 영수증 출력
 </div>
 
 <?php
-include_once(G5_PATH.'/tail.sub.php');
+include_once(G5_PATH.'/tail.sub.php');

shop/toss/toss_approval.php

@@ -14,11 +14,11 @@ $orderId = isset($_REQUEST['orderId']) ? $_REQUEST['orderId'] : '';
 $amount = isset($_REQUEST['amount']) ? $_REQUEST['amount'] : '';
 $paymentKey = isset($_REQUEST['paymentKey']) ? $_REQUEST['paymentKey'] : '';
 
-$toss->setPaymentData([
+$toss->setPaymentData(array(
     'orderId' => $orderId,
     'amount' => $amount,
     'paymentKey' => $paymentKey,
-]);
+));
 
 // 장바구니 ID 설정 (바로구매 여부 확인)
 $ss_cart_id = get_session('ss_direct') ? get_session('ss_cart_direct') : get_session('ss_cart_id');
@@ -48,7 +48,7 @@ $sql = "
     LIMIT 1
 ";
 $res = sql_fetch($sql);
-$dt_data = [];
+$dt_data = array();
 if (isset($res['dt_data'])) {
     $dt_data = unserialize(base64_decode($res['dt_data']));
 }

shop/toss/toss_result.php

@@ -29,11 +29,11 @@ $toss = new TossPayments(
 );
 
 // 결제데이터 셋팅
-$toss->setPaymentData([
+$toss->setPaymentData(array(
     'amount' => $amount,
     'orderId' => $orderId,
     'paymentKey' => $paymentKey
-]);
+));
 $toss->setPaymentHeader();
 
 // 결제승인 요청
@@ -105,4 +105,4 @@ if ($result) {
     }
 } else {
     alert($toss->responseData['message'].' 코드 : '.$toss->responseData['code'], G5_SHOP_URL);
-}
+}