以相反的顺序读取文件 [英] Reading a file in reverse order
问题描述
嗨！
我需要以相反的顺序读取文件（逐行），而不是首先将
整个文件读入内存。
有这么简单的方法吗？在，有没有PHP函数我可以使用？b / b
解决方案必须与平台无关，所以popen（&tac $ filename ;）...
不起作用。
示例输入和输出：
< myfile.txt输入>
第1行
第2行
第3行
< /myfile.txt输入> ;
< php脚本输出>
第3行
第2行
第1行
< /从php脚本输出>
一切顺利，
Erik
-
Erik Andersson（AussieTraders.com.au）
http://www.aussietraders.com.au/
- AussieTraders.com.au，澳大利亚的买入和购买是免费的。出售
marketplace
Hi!
I need to read a file (line-by-line) in reverse order, without reading the
whole file into memory first.
Is there an easy way of doing this? As in, is there a PHP function I could
use?
The solution has to be platform independent, so "popen("tac $filename")...
wouldn''t work.
Example input and ouput:
<myfile.txt input>
line 1
line 2
line 3
</myfile.txt input>
<output from php script>
line 3
line 2
line 1
</output from php script>
All the best,
Erik
--
Erik Andersson ( AussieTraders.com.au )
http://www.aussietraders.com.au/
- Placing an add is FREE at AussieTraders.com.au, Australia''s buy & sell
marketplace
推荐答案
filename"）...
无法正常工作。
示例输入和输出：
< myfile.txt输入>
第1行
第2行
第3行
< /myfile.txt输入>
<输出来自php脚本>
第3行
第2行
第1行
< /从php脚本输出>
一切顺利，
Erik
-
Erik Andersson（AussieTraders。 com.au）
http://www.aussietraders.com.au/
- 在AussieTraders.com.au，澳大利亚的买入和购买时免费提供加价。出售
marketplace
filename")...
wouldn''t work.
Example input and ouput:
<myfile.txt input>
line 1
line 2
line 3
</myfile.txt input>
<output from php script>
line 3
line 2
line 1
</output from php script>
All the best,
Erik
--
Erik Andersson ( AussieTraders.com.au )
http://www.aussietraders.com.au/
- Placing an add is FREE at AussieTraders.com.au, Australia''s buy & sell
marketplace
如果文件很小，请将它们加载到数组中
if the files are small, load them into an array
aryFile =
文件（" filename.txt"）;
然后只需反转数组或读取后缀
-
Mike Bradley
http://www.gzentools.com - 免费在线php工具
" Erik Andersson" < ER ** @ eneit.com>在消息中写道
news：40 ********************* @ uq-127creek-reader-01.brisbane.pipenetworks.com
..au ...
aryFile =
file("filename.txt");
then just reverse the array or read backwords
--
Mike Bradley
http://www.gzentools.com -- free online php tools
"Erik Andersson" <er**@eneit.com> wrote in message
news:40*********************@uq-127creek-reader-01.brisbane.pipenetworks.com
..au...
嗨！
我需要以相反的顺序读取文件（逐行），而不读取将整个文件放入内存中。
有没有简单的方法可以做到这一点？在，有没有我可以使用的PHP函数？
解决方案必须是独立于平台的，所以popen（" tac
Hi!
I need to read a file (line-by-line) in reverse order, without reading the
whole file into memory first.
Is there an easy way of doing this? As in, is there a PHP function I could
use?
The solution has to be platform independent, so "popen("tac
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