Fix warning on PHP8

data/class/SC_CartSession.php

@@ -117,7 +117,7 @@ public function getNextCartID($product_type_id)
     {
         $count = [];
         foreach ($this->cartSession[$product_type_id] as $key => $value) {
-            $count[] = $this->cartSession[$product_type_id][$key]['cart_no'];
+            $count[] = $this->cartSession[$product_type_id][$key]['cart_no'] ?? null;
         }
 
         return max($count) + 1;
@@ -147,7 +147,8 @@ public function getMax($product_type_id)
     {
         $max = 0;
         if (
-            is_array($this->cartSession[$product_type_id])
+            isset($this->cartSession[$product_type_id])
+            && is_array($this->cartSession[$product_type_id])
             && count($this->cartSession[$product_type_id]) > 0
         ) {
             foreach ($this->cartSession[$product_type_id] as $key => $value) {
@@ -157,6 +158,24 @@ public function getMax($product_type_id)
                     }
                 }
             }
+        } else {
+            $this->cartSession[$product_type_id] = [];
+        }
+
+        // カート内商品の最大要素番号までの要素が存在しない場合、要素を追加しておく
+        for ($i = 0; $i <= $max; $i++) {
+            if (!array_key_exists($i, $this->cartSession[$product_type_id])) {
+                $this->cartSession[$product_type_id][$i] = [
+                    'id' => null,
+                    'cart_no' => null,
+                    'price' => 0,
+                    'quantity' => 0,
+                    'productsClass' => [
+                        'product_id' => null,
+                        'product_class_id' => null,
+                    ],
+                ];
+            }
         }
 
         return $max;
@@ -261,7 +280,7 @@ public function addProduct($product_class_id, $quantity)
     {
         $objProduct = new SC_Product_Ex();
         $arrProduct = $objProduct->getProductsClass($product_class_id);
-        $product_type_id = $arrProduct['product_type_id'];
+        $product_type_id = $arrProduct['product_type_id'] ?? null;
         $find = false;
         $max = $this->getMax($product_type_id);
         for ($i = 0; $i <= $max; $i++) {
@@ -875,7 +894,7 @@ public function unsetKey()
      */
     public function getKey()
     {
-        return $_SESSION['cartKey'];
+        return $_SESSION['cartKey'] ?? null;
     }
 
     /**

data/class/SC_CheckError.php

@@ -119,7 +119,7 @@ public function EXIST_CHECK($value)
 
         $this->createParam($value);
 
-        $input_var = $this->arrParam[$keyname];
+        $input_var = $this->arrParam[$keyname] ?? '';
         if (is_array($input_var)) {
             if (count($input_var) == 0) {
                 $this->arrErr[$keyname] =
@@ -304,7 +304,7 @@ public function EQUAL_CHECK($value)
         // $this->createParam($value);
 
         // 文字数の取得
-        if ($this->arrParam[$keyname1] !== $this->arrParam[$keyname2]) {
+        if (($this->arrParam[$keyname1] ?? '') !== ($this->arrParam[$keyname2] ?? '')) {
             $this->arrErr[$keyname1] =
                 "※{$disp_name1}と{$disp_name2}が一致しません。<br />";
         }
@@ -338,7 +338,7 @@ public function DIFFERENT_CHECK($value)
         // $this->createParam($value);
 
         // 文字数の取得
-        if ($this->arrParam[$keyname1] == $this->arrParam[$keyname2]) {
+        if (($this->arrParam[$keyname1] ?? '') == ($this->arrParam[$keyname2] ?? '')) {
             $this->arrErr[$keyname1] = sprintf(
                 '※ %sと%sは、同じ値を使用できません。<br />',
                 $disp_name1,
@@ -375,8 +375,8 @@ public function GREATER_CHECK($value)
         // $this->createParam($value);
 
         // 文字数の取得
-        $input_var1 = $this->arrParam[$keyname1];
-        $input_var2 = $this->arrParam[$keyname2];
+        $input_var1 = $this->arrParam[$keyname1] ?? '';
+        $input_var2 = $this->arrParam[$keyname2] ?? '';
         if ($input_var1 != ''
             && $input_var2 != ''
             && ($input_var1 > $input_var2)
@@ -1221,7 +1221,7 @@ public function FILE_SIZE_CHECK($value)
 
         $this->createParam($value);
 
-        if ($_FILES[$keyname]['size'] > $max_file_size * 1024) {
+        if (isset($_FILES[$keyname]['size']) && $_FILES[$keyname]['size'] > $max_file_size * 1024) {
             $byte = 'KB';
             if ($max_file_size >= 1000) {
                 $max_file_size /= 1000;
@@ -1475,7 +1475,7 @@ public function CHECK_SET_TERM($value)
             $date1 = sprintf('%d%02d%02d000000', $start_year, $start_month, $start_day);
             $date2 = sprintf('%d%02d%02d235959', $end_year, $end_month, $end_day);
 
-            if (($this->arrErr[$keyname1] == '' && $this->arrErr[$keyname2] == '') && $date1 > $date2) {
+            if ((!isset($this->arrErr[$keyname1]) && !isset($this->arrErr[$keyname2])) && $date1 > $date2) {
                 $this->arrErr[$keyname1] =
                     "※ {$disp_name1}と{$disp_name2}の期間指定が不正です。<br />";
             }
@@ -1556,7 +1556,7 @@ public function CHECK_SET_TERM2($value)
                 $end_year, $end_month, $end_day,
                 $end_hour, $end_minute, $end_second);
 
-            if (($this->arrErr[$keyname1] == '' && $this->arrErr[$keyname2] == '') && $date1 > $date2) {
+            if ((!isset($this->arrErr[$keyname1]) && !isset($this->arrErr[$keyname2])) && $date1 > $date2) {
                 $this->arrErr[$keyname1] =
                     "※ {$disp_name1}と{$disp_name2}の期間指定が不正です。<br />";
             }
@@ -1616,7 +1616,7 @@ public function CHECK_SET_TERM3($value)
             $date1 = sprintf('%d%02d', $start_year, $start_month);
             $date2 = sprintf('%d%02d', $end_year, $end_month);
 
-            if (($this->arrErr[$keyname1] == '' && $this->arrErr[$keyname2] == '') && $date1 > $date2) {
+            if ((!isset($this->arrErr[$keyname1]) && !isset($this->arrErr[$keyname2])) && $date1 > $date2) {
                 $this->arrErr[$keyname1] =
                     "※ {$disp_name1}と{$disp_name2}の期間指定が不正です。<br />";
             }

data/class/SC_ClassAutoloader.php

@@ -106,12 +106,16 @@
 
                             eval($base_class_str);
                         } else {
-                            include $plugin_classpath;
+                            if (file_exists($plugin_classpath)) {
+                                include $plugin_classpath;
+                            }
                         }
 
                         $parent_classname = $plugin_class;
                     } else {
-                        include $plugin_classpath;
+                        if (file_exists($plugin_classpath)) {
+                            include $plugin_classpath;
+                        }
                     }
                 }
 

data/class/SC_Customer.php

@@ -202,7 +202,7 @@ public function startSession()
     {
         $_SESSION['customer'] = $this->customer_data;
         // セッション情報の保存
-        GC_Utils_Ex::gfPrintLog('access : user='.$this->customer_data['customer_id']."\t".'ip='.$this->getRemoteHost(), CUSTOMER_LOG_REALFILE, false);
+        GC_Utils_Ex::gfPrintLog('access : user='.($this->customer_data['customer_id'] ?? '')."\t".'ip='.$this->getRemoteHost(), CUSTOMER_LOG_REALFILE, false);
     }
 
     /**
@@ -270,9 +270,12 @@ public function getValue($keyname)
     {
         // ポイントはリアルタイム表示
         if ($keyname == 'point') {
-            $objQuery = SC_Query_Ex::getSingletonInstance();
-            $point = $objQuery->get('point', 'dtb_customer', 'customer_id = ?', [$_SESSION['customer']['customer_id']]);
-            $_SESSION['customer']['point'] = $point;
+            $point = 0;
+            if (isset($_SESSION['customer']['customer_id'])) {
+                $objQuery = SC_Query_Ex::getSingletonInstance();
+                $point = $objQuery->get('point', 'dtb_customer', 'customer_id = ?', [$_SESSION['customer']['customer_id']]);
+                $_SESSION['customer']['point'] = $point;
+            }
 
             return $point;
         } else {

data/class/SC_CustomerList.php

@@ -142,7 +142,7 @@ public function __construct($array, $mode = '')
             foreach ($this->arrSql['search_email'] as $val) {
                 $val = trim($val);
                 // 検索条件を含まない
-                if ($this->arrSql['not_emailinc'] == '1') {
+                if (isset($this->arrSql['not_emailinc']) && $this->arrSql['not_emailinc'] == '1') {
                     if ($sql_where == '') {
                         $sql_where .= 'dtb_customer.email NOT ILIKE ? ';
                     } else {
@@ -173,7 +173,7 @@ public function __construct($array, $mode = '')
             foreach ($this->arrSql['search_email_mobile'] as $val) {
                 $val = trim($val);
                 // 検索条件を含まない
-                if ($this->arrSql['not_email_mobileinc'] == '1') {
+                if (isset($this->arrSql['not_email_mobileinc']) && $this->arrSql['not_email_mobileinc'] == '1') {
                     if ($sql_where == '') {
                         $sql_where .= 'dtb_customer.email_mobile NOT ILIKE ? ';
                     } else {

data/class/SC_Initial.php

@@ -36,7 +36,7 @@
     public function __construct()
     {
         /* EC-CUBEのバージョン */
-        define('ECCUBE_VERSION', '2.17.2-p2');
+        defined('ECCUBE_VERSION') || define('ECCUBE_VERSION', '2.17.2-p2');
     }
 
     /**
@@ -72,7 +72,9 @@
 
         // heroku用
         } elseif (getenv('DATABASE_URL')) {
-            ini_set('display_errors', 1);
+            if (!headers_sent()) {
+                ini_set('display_errors', 1);
+            }
             copy(realpath(__DIR__).'/../../tests/config.php', CONFIG_REALFILE);
 
             require_once CONFIG_REALFILE;
@@ -139,26 +141,26 @@
      */
     public function phpconfigInit()
     {
-        ini_set('html_errors', '1');
-        if (PHP_VERSION_ID < 50600) {
-            ini_set('mbstring.http_input', CHAR_CODE);
-            ini_set('mbstring.http_output', CHAR_CODE);
-        }
-        if (PHP_VERSION_ID < 80100) {
-            ini_set('auto_detect_line_endings', 1);
+        if (!headers_sent()) {
+            ini_set('html_errors', '1');
+            if (PHP_VERSION_ID < 50600) {
+                ini_set('mbstring.http_input', CHAR_CODE);
+                ini_set('mbstring.http_output', CHAR_CODE);
+            }
+            if (PHP_VERSION_ID < 80100) {
+                ini_set('auto_detect_line_endings', 1);
+            }
+            ini_set('default_charset', CHAR_CODE);
+            ini_set('mbstring.detect_order', 'auto');
+            ini_set('mbstring.substitute_character', 'none');
+            ini_set('pcre.backtrack_limit', 1000000);
+            ini_set('arg_separator.output', '&');
         }
-        ini_set('default_charset', CHAR_CODE);
-        ini_set('mbstring.detect_order', 'auto');
-        ini_set('mbstring.substitute_character', 'none');
-        ini_set('pcre.backtrack_limit', 1000000);
-
         mb_language('ja'); // mb_internal_encoding() より前に
         // TODO .htaccess の mbstring.language を削除できないか検討
 
         mb_internal_encoding(CHAR_CODE); // mb_language() より後で
 
-        ini_set('arg_separator.output', '&');
-
         // ロケールを明示的に設定
         $res = setlocale(LC_ALL, LOCALE);
         if ($res === false) {

data/class/SC_Product.php

@@ -241,7 +241,7 @@ public function getDetail($product_id)
     public function getDetailAndProductsClass($productClassId)
     {
         $result = $this->getProductsClass($productClassId);
-        $result = array_merge($result, $this->getDetail($result['product_id']));
+        $result = array_merge($result, $this->getDetail($result['product_id'] ?? null));
 
         return $result;
     }
@@ -423,13 +423,13 @@ public function getProductsClass($productClassId)
         $objQuery->setWhere('product_class_id = ? AND T1.del_flg = 0');
         $arrRes = $this->getProductsClassByQuery($objQuery, $productClassId);
 
-        $arrProduct = (array) $arrRes[0];
+        $arrProduct = $arrRes[0] ?? [];
 
         // 税込計算
-        if (!SC_Utils_Ex::isBlank($arrProduct['price01'])) {
+        if (!SC_Utils_Ex::isBlank($arrProduct['price01'] ?? '')) {
             $arrProduct['price01_inctax'] = SC_Helper_TaxRule_Ex::sfCalcIncTax($arrProduct['price01'], $arrProduct['product_id']);
         }
-        if (!SC_Utils_Ex::isBlank($arrProduct['price02'])) {
+        if (!SC_Utils_Ex::isBlank($arrProduct['price02'] ?? '')) {
             $arrProduct['price02_inctax'] = SC_Helper_TaxRule_Ex::sfCalcIncTax($arrProduct['price02'], $arrProduct['product_id']);
         }
 
@@ -577,7 +577,7 @@ public function reduceStock($productClassId, $quantity)
         // TODO エラーハンドリング
 
         $productsClass = $this->getDetailAndProductsClass($productClassId);
-        if ($productsClass['stock_unlimited'] != '1' && $productsClass['stock'] < 0) {
+        if (($productsClass['stock_unlimited'] ?? 0) != '1' && ($productsClass['stock'] ?? 0) < 0) {
             return false;
         }
 

data/class/SC_Response.php

@@ -57,6 +57,9 @@
 
     public function sendHeader()
     {
+        if (headers_sent()) {
+            return;
+        }
         // HTTPのヘッダ
         foreach ($this->header as $name => $head) {
             header($name.': '.$head);
@@ -177,7 +180,7 @@
         }
 
         // url-path → URL 変換
-        if ($location[0] === '/') {
+        if ($location !== '' && $location[0] === '/') {
             $netUrl = new Net_URL($location);
             $location = $netUrl->getUrl();
         }
@@ -248,7 +251,9 @@
 
         $url = $netUrl->getURL();
 
-        header("Location: $url");
+        if (!headers_sent()) {
+            header("Location: $url");
+        }
         static::exitWrapper();
     }
 
@@ -388,10 +393,12 @@
      */
     public static function headerForDownload($file_name)
     {
-        header("Content-disposition: attachment; filename={$file_name}");
-        header("Content-type: application/octet-stream; name={$file_name}");
-        header('Cache-Control: ');
-        header('Pragma: ');
+        if (!headers_sent()) {
+            header("Content-disposition: attachment; filename={$file_name}");
+            header("Content-type: application/octet-stream; name={$file_name}");
+            header('Cache-Control: ');
+            header('Pragma: ');
+        }
     }
 
     /**