Re: Getting line count of a text file
| From: | Nathan Nobbe | Date: | Wed, 12 Sep 2007 19:46:51 +0000 |
| Subject: | Re: Getting line count of a text file | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-262046@lists.php.net to get a copy of this message | ||
On 9/12/07, Wolf <lonewolf@nc.rr.com> wrote:
>
> $command = escapeshellcmd("cat {$file} | wc -l");
> // Run command and capture results
> $count = exec($command);
that would work on *nix, but not windows.
---- "Frank J. Schima" <fjs@foraker.com> wrote:
> > Hi all,
> >
> >
> > In PHP 5, I'm counting the number of lines in a text file using the
> > following code:
> > $myfile = file ( '/path/to/myfile.txt');
> > $count = count ($myfile);
> >
> > However, sometimes it fails with the following error:
> > PHP Fatal error: Allowed memory size of xxxx bytes exhausted
> (tried
> > to allocate 35 bytes) in /path/to/myprogram.php on line 16
> >
> > Line 16 is the first line above.
> >
> > I'm sure there is a better - more memory efficient - way to do this.
> > Any suggestions?
> >
> >
> > Thanks!
> > Frank Schima
> > Foraker Design
> > <http://www.foraker.com>
> >
> >
>
if you want a cross-platform solution (not that i use windows :))
or you dont want to use exec() or related functions look to the stream
functions. they support buffered reading, so theorectically a script could
read portions of a file and count lines as it read through the portions.
-nathan