fix conflict

app/Http/Function.php

@@ -2,6 +2,7 @@
 	/** 公用函数 */
 
     //导出数据
+    //导出数据
     function exportExcel($expTitle, $expCellName, $expTableData)
     {
         $xlsTitle = iconv('utf-8', 'gb2312', $expTitle);//文件名称
@@ -13,6 +14,13 @@
 
         $objPHPExcel = new PHPExcel(); 
         include_once(__DIR__."/../../vendor/PHPExcel/PHPExcel/IOFactory.php");
+        set_time_limit(0);//不对php(主要是写数据)执行时间做限制
+        ini_set("memory_limit", "1024M");//设置内存(防爆内存)
+        $cacheMethod = \PHPExcel_CachedObjectStorageFactory::cache_in_memory_serialized;//设置缓存策略(减少内存占用)
+        //判断缓存策略是否可用
+        if (!\PHPExcel_Settings::setCacheStorageMethod($cacheMethod)) {
+            die($cacheMethod . " 缓存方法不可用" . EOL);
+        }
 
         $cellName = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','AA','AB','AC','AD','AE','AF','AG','AH','AI','AJ','AK','AL','AM','AN','AO','AP','AQ','AR','AS','AT','AU','AV','AW','AX','AY','AZ');
         //显示导出名称和导出时间
@@ -29,9 +37,11 @@
         }
 
         header('pragma:public');
-        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="'.$xlsTitle.'.xls"');
-        header("Content-Disposition:attachment;filename=$fileName.xls");//attachment新窗口打印inline本窗口打印
-        $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
+        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="'.$xlsTitle.'.csv"');
+        header("Content-Disposition:attachment;filename=$fileName.csv");//attachment新窗口打印inline本窗口打印
+        //输出bom
+        print(chr(0xEF).chr(0xBB).chr(0xBF));
+        $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'CSV');
         $objWriter->save('php://output');
         exit;
     }