$command = escapeshellcmd("cat {$file} | wc -l");
// Run command and capture results
$count = exec($command);



---- "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>
>
>

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

On Sep 12, 2007, at 1:46 PM, Nathan Nobbe wrote:

> 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.

Since I am developing and deploying on *nix, shell commands are fine
with me.

> ---- "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.

Sounds a little painful. I'll look into it though.

>
> -nathan


Thanks!

Frank Schima
Foraker Design
<http://www.foraker.com>
303-449-0202

On Sep 12, 3:46 pm, quickshif...@gmail.com ("Nathan Nobbe") wrote:
>
> 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

Right -- something like this:

$numLines = 0;

$handle = fopen('/path/to/myfile.txt', 'r');

while(!feof($handle)) {
fgets($handle);
++$numLines;
}

fclose($handle);