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, Frank J. Schima <fjs@foraker.com> wrote:
> 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?

it's sloppy but you could use system("wc -l $file") and grab the first
part before the space (doesn't seem to be an option to NOT display the
filename again)

hey...

if you're going to do the system approach, go ahead and use awk/cut...

wc -l foo.txt | awk -F' ' '{print $1}'

should work assuming you're on linux.....



-----Original Message-----
From: mike [mailto:mike503@gmail.com]
Sent: Wednesday, September 12, 2007 12:46 PM
To: Frank J. Schima
Cc: php-general@lists.php.net
Subject: Re: [php] Getting line count of a text file


On 9/12/07, Frank J. Schima <fjs@foraker.com> wrote:
> 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?

it's sloppy but you could use system("wc -l $file") and grab the first
part before the space (doesn't seem to be an option to NOT display the
filename again)

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Frank J. Schima wrote:

> 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?

$f=fopen( yourfile, "r" );
$i=0;
while( fgets($f) ) $i++;
fclose($f);
$count=$i;


/Per Jessen, Zürich

Hi Gang,


On Sep 12, 2007, at 1:58 PM, bruce wrote:

> if you're going to do the system approach, go ahead and use awk/cut...
>
> wc -l foo.txt | awk -F' ' '{print $1}'
>
> should work assuming you're on linux.....

I have solved the problem with this approach. Thanks for all the
suggestions.

FYI, it was a (very) minor pain to make that into a string. I ended
up using this:

$count = system("wc -l /path/to/myfile.txt | awk -F' ' '{print " .
'$' . "1}'");

I didn't need to escape anything because the file was hardcoded - no
user input.


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

Frank J. Schima 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>
>
>
>

echo intval(str_replace(' '.$file, '', trim(system('wc -l '.$file))));

--
Jim Lucas

"Some men are born to greatness, some achieve greatness,
and some have greatness thrust upon them."

Twelfth Night, Act II, Scene V
by William Shakespeare