在PHP中打开文件是否有大小限制？ [英] Is there a size limit to opening files in PHP?

问题描述

我在PHP中使用dbase扩展打开一个4.5+ GB的大型DBF，但似乎给从960万以上的烧录记录，即使数据库看起来完美的任何查看器等。

$

解决方案

你提到一个4.5 gigdbf数据库文件。从dBASE（回溯）和FoxPro / Visual FoxPro的历史发展来看，它们基于一个32位O / S，并且最大单个文件大小为2千兆位。通过使用4.5 gig，我怀疑.dbf由另一个程序处理...例如Sybase Database-Advantage-Server，它支持和扩展旧的.dbf格式，并允许超过2 gig文件限制。我会确保你正在使用哪个数据库连接处理程序。

I am using a dbase extension in PHP to open up a large DBF of 4.5+ GB but it seems to give bum records from 9.6 million onward even though the database looks perfectly fine in any viewer, etc.

Do I need to somehow crank up a memory limit somewhere?

解决方案

You mention a 4.5 gig "dbf" database file. From a historical development of dBASE (way back), and FoxPro / Visual FoxPro, they were based one 32-bit O/S and the maximum individual file size was 2 gig. By having a 4.5 gig, I would suspect the .dbf is handled by another program... Such as Sybase Database-Advantage-Server which supports and extends older .dbf formats and allows exceeding that 2 gig file limit. I would make sure which database connection handlers you are working with.

这篇关于在PHP中打开文件是否有大小限制？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！