refactor: xlsx导入封装

app/admin/common.php

@@ -27,6 +27,47 @@ if (!function_exists('array_to_tree')) {
     }
 }
 
+if (!function_exists('xlsx_reader')) {
+    /**
+     * 读取Excel数据
+     * @param string $file Excel文件路径
+     * @param int $initial_row 初始行
+     * @param array $keys_map 列 -> 键 例：['A' => 'name', 'B' => 'age', 'C' => 'sex']
+     * @return array
+     */
+    function xlsx_reader(string $file, int $initial_row = 1, array $keys_map = []): array
+    {
+        $reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader('Xlsx');
+
+        // 读取文件
+        $spreadsheet = $reader->load($file);
+
+        // 获取活动sheet
+        $sheet = $spreadsheet->getActiveSheet();
+
+        // 获取最大行
+        $max_row = $sheet->getHighestRow();
+
+        // 获取最大列
+        $max_col = $sheet->getHighestColumn();
+
+        $xlsx_data = [];
+        $first_col = ord('A');
+        $last_col  = ord($max_col);
+        for ($row = $initial_row; $row <= $max_row; $row++) {
+            for ($col = $first_col; $col <= $last_col; $col++) {
+                $key = $col_chr = chr($col);
+                if (!empty($keys_map)) {
+                    $key = $keys_map[$col_chr] ?? $col_chr;
+                }
+                $xlsx_data[$row][$key] = $sheet->getCell($col_chr . $row)->getValue();
+            }
+        }
+
+        return $xlsx_data;
+    }
+}
+
 if (!function_exists('xlsx_writer')) {
     /**
      * 构建Excel数据