refactor: 导出xlsx封装

app/admin/common.php

@@ -25,4 +25,50 @@ if (!function_exists('array_to_tree')) {
         }
         return $ret;
     }
+}
+
+if (!function_exists('xlsx_writer')) {
+    /**
+     * 构建Excel数据
+     * @param array $data 数据 例：[['name'=>'张三','age'=>18, 'sex'=>'男']]
+     * @param array $schema 表头信息 例：['name' => '姓名', 'age' => '年龄', 'sex' => '性别']
+     * @param string $filename 下载文件名称 默认为YmdHis时间
+     * @return \PhpOffice\PhpSpreadsheet\Writer\IWriter
+     */
+    function xlsx_writer(array|\think\model\Collection $data, array $schema, string $filename = ''): \PhpOffice\PhpSpreadsheet\Writer\IWriter
+    {
+        // 获取Spreadsheet对象
+        $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+
+        // 写入表头
+        $title = array_values($schema);
+        $title_col = 'A';
+        foreach ($title as $value) {
+            // 单元格内容写入
+            $sheet->setCellValue($title_col . '1', $value);
+            $title_col++;
+        }
+
+        // 写入数据
+        $row = 2;
+        $keys = array_keys($schema);
+        foreach ($data as $item) {
+            $data_col = 'A';
+            foreach ($keys as $key) {
+                $sheet->setCellValue($data_col . $row, $item[$key] ?? '');
+                $data_col++;
+            }
+            $row++;
+        }
+
+        flush();
+        ob_flush();
+        if ($filename == '') $filename = date('YmdHis');
+        header('Access-Control-Expose-Headers: Content-Disposition');
+        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet; Charset=UTF-8');
+        header('Content-Disposition: attachment;filename=' . $filename . '.xlsx');
+        header('Cache-Control: max-age=0');
+        return \PhpOffice\PhpSpreadsheet\IOFactory::createWriter($spreadsheet, 'Xlsx');
+    }
 }