Giving Fatal Error in memory allocation for query reading more than 20000 records from the database and also its taking too much of time to load
So please help us good suggestion to export more than 20000 records.
2条回答 默认 最新
dtf1111 2013-12-26 12:19关注If you are exporting that many records as Excel then the issue will be more bad than memory limit.
If you are exporting data to CSV via the PHP script then you can use the following
set_time_limit(6000); ini_set("memory_limit", -1);
The first one will set the script limit and the 2nd one will erase the memory issue.
But its always good to avoid exporting or importing at once with huge data set, but I agree sometime we have no choice but to do as per the requirement.
解决 无用评论 打赏举报
分享
- 2021-12-27 18:34回答 3 已采纳 将table放到一个容器中，然后获取容器的html赋值给表单也一样的，要不php中字符串连接组成html比较麻烦
- 2017-03-10 17:19回答 1 已采纳 Create a file separate file having the following code and create a hyperlink in your current file
- 2016-03-22 12:11回答 2 已采纳 You should have category values between "" so the comma is not interpreted. You can change code li
- 2020-10-25 07:18项目开发中，很多时候要将外部CSV文件导入到数据库中或者将数据导出为CSV文件，那么具体该如何实现呢？本文将使用PHP并结合mysql，实现了CSV格式数据的导入和导出功能。
- 2017-07-26 13:09回答 2 已采纳 this works fine in my laravel 5.4 project public function handle() { $filename = "logins.csv"
- 2017-09-05 06:02回答 2 已采纳 Arsee, Better you try with This query SELECT DATE_FORMAT(FROM_UNIXTIME(created_on), '%e %b %Y') AS
- 2016-02-10 06:09回答 1 已采纳 You need to change your WHERE clause to use the month and year database columns: This: AND activ
- 2020-10-21 02:47下面小编就为大家带来一篇php导出csv文件,可导出前导0实例代码。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧
- 2013-09-25 13:40回答 1 已采纳 Change mysql_fetch_array() to mysql_fetch_assoc(). mysql_fetch_array() fetches both a numeric and
- 2018-08-23 08:34回答 1 已采纳 The answer was to create a .htaccess file. After @Inazo's comment I checked my logs and saw this:
- 2018-07-26 04:09回答 1 已采纳 You have done small mistake in export.php file: // iteratively exports row by row if (count($c
- 2020-12-19 09:53本文实例讲述了php导出CSV抽象类及其应用，分享给大家供大家参考。具体分析如下： 该php导出CSV抽象类，可根据总记录数与每批次记录数，计算总批次，...* public setPageSize 设置每批次导出的记录条数 * public set
- 2010-03-01 08:01回答 2 已采纳 Check out the fputcsv() function. It will handle quotes/escaping much better than what you have.
- 2020-12-18 02:24以上这篇完美解决php 导出excle的.csv格式的数据时乱码问题就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持软件开发网。 您可能感兴趣的文章:php实现批量上传数据到数据库(.csv格式)的...
- 2019-07-20 10:172019年 PHP Excel导入导出 CSV导入导出，thinkphp Excel导入导出 CSV导入导出
- 没有解决我的问题, 去提问
悬赏问题
- ¥15 用windows做服务的同志有吗
- ¥60 求一个简单的网页(标签-安全|关键词-上传)
- ¥35 lstm时间序列共享单车预测，loss值优化，参数优化算法
- ¥15 基于卷积神经网络的声纹识别
- ¥15 Python中的request，如何使用ssr节点，通过代理requests网页。本人在泰国，需要用大陆ip才能玩网页游戏，合法合规。
- ¥100 为什么这个恒流源电路不能恒流？
- ¥15 有偿求跨组件数据流路径图
- ¥15 写一个方法checkPerson，入参实体类Person，出参布尔值
- ¥15 我想咨询一下路面纹理三维点云数据处理的一些问题，上传的坐标文件里是怎么对无序点进行编号的，以及xy坐标在处理的时候是进行整体模型分片处理的吗
- ¥15 一直显示正在等待HID—ISP