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Re: Going back to a previous line in a CSV file [message #170160 is a reply to message #170143]

Wed, 13 October 2010 13:39

aaaa
Messages: 7
Registered: September 2010

Karma:

Junior Member

> Hello, how do I go about doing this.
>
> I've tried using fseek but it doesn't work

It does work, but you need offset.
You should use fgetcsv, if you do then:

$f = fopen(...)

while(...)
{
$line = fgetcsv($f);
//going back:
$cur_pos = ftell($f); //remember current pos
fseek($f, $pos, SEEK_SET); //go to previously remembered position
$prev_line = fgetcsv($f); //read line
fseek($f, $cur_pos, SEEK_SET); //go to "current" position
//end of going back
$pos = $cur_pos;
}

--
A

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[Message index]

		Going back to a previous line in a CSV file By: pereges on Tue, 12 October 2010 18:50
		Re: Going back to a previous line in a CSV file By: Luuk on Tue, 12 October 2010 19:09
		Re: Going back to a previous line in a CSV file By: Michael Fesser on Tue, 12 October 2010 19:20
		Re: Going back to a previous line in a CSV file By: pereges on Tue, 12 October 2010 20:07
		Re: Going back to a previous line in a CSV file By: pereges on Tue, 12 October 2010 20:12
		Re: Going back to a previous line in a CSV file By: Luuk on Tue, 12 October 2010 20:17
		Re: Going back to a previous line in a CSV file By: Thomas 'PointedEars' on Sat, 16 October 2010 17:52
		Re: Going back to a previous line in a CSV file By: Michael Fesser on Tue, 12 October 2010 20:41
		Re: Going back to a previous line in a CSV file By: aaaa on Wed, 13 October 2010 13:39

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