empty lines

[Piotr Wolski]

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

[steve]

"Piotr Wolski" wrote:

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

foreach ($inarr as $out) {
if ($out <> ’’) echo $out . "\n";
}

or instead of \n use <br> if writing to browser.

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[Piotr Wolski]

steve wrote:

"Piotr Wolski" wrote:

> i read the filr into an array using file().
> some of the lines are empty. i would like to output the file but
> ignoring the emnpty lines. any ideas?

foreach ($inarr as $out) {
if ($out <> ’’) echo $out . "\n";
}

or instead of \n use <br> if writing to browser.

unfortunately it didint help. output is still the same.

$plik = fopen("wynik","r");
$tablica = file('wynik');

foreach ($tablica as $out) {
if ($out <> ' ') echo $out."\n";
}

[Ian.H]

On Tue, 17 Aug 2004 11:31:19 -0500, Piotr Wolski wrote:

steve wrote:

"Piotr Wolski" wrote:

> i read the filr into an array using file().
> some of the lines are empty. i would like to output the file but
> ignoring the emnpty lines. any ideas?
foreach ($inarr as $out) {
if ($out <> '') echo $out . "\n";
}

or instead of \n use <br> if writing to browser.

unfortunately it didint help. output is still the same.

$plik = fopen("wynik","r");
$tablica = file('wynik');

foreach ($tablica as $out) {
if ($out <> ' ') echo $out."\n";

^^ ^ }

m$ style "not" (<>) and a space you're checking against. Try:
foreach ($tablica as $out) {
if (strlen($out) > 0) echo "$out\n";
}
Note:

if ($out != '') echo "$out\n";
could also be used, depending on your preferred coding style =)

HTH.

Regards,

Ian

--
Ian.H
digiServ Network
London, UK
http://digiserv.net/

[Piotr Wolski]

Ian.H wrote:

On Tue, 17 Aug 2004 11:31:19 -0500, Piotr Wolski wrote:

steve wrote:

"Piotr Wolski" wrote:
> i read the filr into an array using file().
> some of the lines are empty. i would like to output the file but
> ignoring the emnpty lines. any ideas?

foreach ($inarr as $out) {
if ($out <> '') echo $out . "\n";
}

or instead of \n use <br> if writing to browser.

unfortunately it didint help. output is still the same.

$plik = fopen("wynik","r");
$tablica = file('wynik');

foreach ($tablica as $out) {
if ($out <> ' ') echo $out."\n";

^^ ^

}

m$ style "not" (<>) and a space you're checking against. Try:
foreach ($tablica as $out) {
if (strlen($out) > 0) echo "$out\n";
}
Note:

if ($out != '') echo "$out\n";
could also be used, depending on your preferred coding style =)

HTH.

Regards,

Ian

i' wondering whats wrong cause the result is the same..
here is my code:

echo '<br><textarea name="show" rows=24 cols=40>';

exec($program." >wynik");
$plik = fopen("wynik","r");

$tablica = file('wynik');

foreach ($tablica as $out) {
if (strlen($out)>0) echo $out;

}
echo '</textarea>';
end the output in textarea is still the same:
I = 0
J = 0
sum2 = 0.000000
sum = 0.000000
Alpha 1 = 0.000000
Alpha = NaN
total = 0

percentage is = 0.000000%

....

i dont want to have this empty lines..

[Nikolai Chuvakhin]

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

$data = file('file.txt');
foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line;
}
}

Cheers,
NC

[kingofkolt]

"Piotr Wolski" <wo****@cs.purdue.edu> wrote in message
news:cf**********@mozo.cc.purdue.edu...

Ian.H wrote:

On Tue, 17 Aug 2004 11:31:19 -0500, Piotr Wolski wrote:

steve wrote:

"Piotr Wolski" wrote:
> i read the filr into an array using file().
> some of the lines are empty. i would like to output the file but
> ignoring the emnpty lines. any ideas?

foreach ($inarr as $out) {
if ($out <> '') echo $out . "\n";
}

or instead of \n use <br> if writing to browser.
unfortunately it didint help. output is still the same.

$plik = fopen("wynik","r");
$tablica = file('wynik');

foreach ($tablica as $out) {
if ($out <> ' ') echo $out."\n";

^^ ^

}

m$ style "not" (<>) and a space you're checking against. Try:
foreach ($tablica as $out) {
if (strlen($out) > 0) echo "$out\n";
}
Note:

if ($out != '') echo "$out\n";
could also be used, depending on your preferred coding style =)

HTH.

Regards,

Ian

i' wondering whats wrong cause the result is the same..
here is my code:

echo '<br><textarea name="show" rows=24 cols=40>';

exec($program." >wynik");
$plik = fopen("wynik","r");

$tablica = file('wynik');

foreach ($tablica as $out) {
if (strlen($out)>0) echo $out;

}
echo '</textarea>';
end the output in textarea is still the same:
I = 0
J = 0
sum2 = 0.000000
sum = 0.000000
Alpha 1 = 0.000000
Alpha = NaN
total = 0

percentage is = 0.000000%

...

i dont want to have this empty lines..

Maybe try a simple regexp? Ex:

foreach ($tablica as $out) {
if ( strlen( $out ) > 0 && preg_match( "/\S/", $out, $tmp ) echo $out;
}

[Piotr Wolski]

Nikolai Chuvakhin wrote:

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

$data = file('file.txt');
foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line;
}
}

Cheers,
NC

yes, this is ok:). thank you very much, however i dont know why other
solutions were not correct.

[Piotr Wolski]

Piotr Wolski wrote:

Nikolai Chuvakhin wrote:

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

$data = file('file.txt'); foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line; }
}

Cheers, NC

yes, this is ok:). thank you very much, however i dont know why other
solutions were not correct.

if in my file for example in the middle of the file is a word "blabla".
How than i can find this word?
i'd like to use in inside this code if its possible and make this
"blabla" bold <b>:

$data = file('file.txt'); foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line; } }

[Piotr Wolski]

Piotr Wolski wrote:

Piotr Wolski wrote:

Nikolai Chuvakhin wrote:

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?


$data = file('file.txt'); foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line; }
}

Cheers, NC

yes, this is ok:). thank you very much, however i dont know why other
solutions were not correct.

if in my file for example in the middle of the file is a word "blabla".
How than i can find this word?
i'd like to use in inside this code if its possible and make this
"blabla" bold <b>:

$data = file('file.txt'); foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line; } }

and one more question. can i somehow use html tags inside <textarea>
??for example i want to use <hr> tag.

[Ian.H]

On Tue, 17 Aug 2004 13:40:47 -0500, Piotr Wolski wrote:

Nikolai Chuvakhin wrote:

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

$data = file('file.txt');
foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line;
}
}

Cheers,
NC

yes, this is ok:). thank you very much, however i dont know why other
solutions were not correct.

It's caused by the newline char (\n). While the line appears empty (as it
would in a text editor), there is infact an "invisible" chart at the end
noting that a newline should be used. trim() strips off the \n char from a
string, thus resulting in a completely empty string which then gives the
output you were expecting =)

Regards,

Ian

--
Ian.H
digiServ Network
London, UK
http://digiserv.net/

[Ian.H]

On Tue, 17 Aug 2004 13:44:41 -0500, Piotr Wolski wrote:

Piotr Wolski wrote:

Nikolai Chuvakhin wrote:

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

$data = file('file.txt'); foreach($data as $line) {
if (strlen(trim($line)) > 0) {
echo $line; }
}

Cheers, NC
yes, this is ok:). thank you very much, however i dont know why other
solutions were not correct.

if in my file for example in the middle of the file is a word "blabla".
How than i can find this word?
i'd like to use in inside this code if its possible and make this
"blabla" bold <b>:

$data = file('file.txt'); foreach($data as $line) {
if (strlen(trim($line)) > 0) {

$line = str_replace('blabla', '<b>blabla</b>', $line);
echo $line;
} }

Should work.

Regards,

Ian

--
Ian.H
digiServ Network
London, UK
http://digiserv.net/

[Brad Kent]

here's an idea:

foreach ( $lines as $line )
if ( !empty($line) )
echo $line;

Piotr Wolski <wo****@cs.purdue.edu> wrote in message news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

[Brad Kent]

here's an idea:

foreach ( $lines as $line )
if ( !empty($line) )
echo $line;

Piotr Wolski <wo****@cs.purdue.edu> wrote in message news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

[Brad Kent]

here's an idea:

foreach ( $lines as $line )
if ( !empty($line) )
echo $line;

Piotr Wolski <wo****@cs.purdue.edu> wrote in message news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

[Ian.H]

[ TOFU corrected: <http://tk.digiserv.net/tofu.txt]

Piotr Wolski <wo****@cs.purdue.edu> wrote in message
news:<cf**********@mozo.cc.purdue.edu>...

i read the filr into an array using file(). some of the lines are
empty. i would like to output the file but ignoring the emnpty lines.
any ideas?

On Tue, 17 Aug 2004 14:02:21 -0700, Brad Kent wrote:
here's an idea:

foreach ( $lines as $line )
if ( !empty($line) )
echo $line;

0
0
0
The above 3 lines are empty according to the empty() function, which would
skip these, maybe not the actions the OP would like =)

Regards,

Ian

--
Ian.H
digiServ Network
London, UK
http://digiserv.net/

[Chung Leong]

"Piotr Wolski" <wo****@cs.purdue.edu> wrote in message
news:cf**********@mozo.cc.purdue.edu...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

array_map() and array_filter() are definitely under-utilitized...

$tablica = array_filter(array_map('rtrim', file('wynik.txt')));
--
Obey the Clown - http://www.conradish.net/bobo/

[steve]

"Piotr Wolski" wrote:

steve wrote:

"Piotr Wolski" wrote:

> i read the filr into an array using file().
> some of the lines are empty. i would like to output the file but > ignoring the emnpty lines. any ideas?

foreach ($inarr as $out) {
if ($out <> ’’) echo $out . "\n";
}

or instead of \n use <br> if writing to browser.

unfortunately it didint help. output is still the same.

$plik = fopen("wynik","r");
$tablica = file(’wynik’);

foreach ($tablica as $out) {
if ($out <> ’ ’) echo $out."\n";
}

Piotr, you have a space between the single quotes in "($out <> ’ ’)
".
Remove the space and it works. The other solutions with strlen do
the same thing.

--
http://www.dbForumz.com/ This article was posted by author's request
Articles individually checked for conformance to usenet standards
Topic URL: http://www.dbForumz.com/PHP-empty-li...ict140418.html
Visit Topic URL to contact author (reg. req'd). Report abuse: http://www.dbForumz.com/eform.php?p=470470

[Andy Hassall]

On Wed, 18 Aug 2004 00:11:24 -0400, "Chung Leong" <ch***********@hotmail.com>
wrote:

"Piotr Wolski" <wo****@cs.purdue.edu> wrote in message
news:cf**********@mozo.cc.purdue.edu...

i read the filr into an array using file().
some of the lines are empty. i would like to output the file but
ignoring the emnpty lines. any ideas?

array_map() and array_filter() are definitely under-utilitized...

$tablica = array_filter(array_map('rtrim', file('wynik.txt')));

Careful with zeroes...

<pre>
<?php
print_r(file('wynik.txt'));

print "\n\n";

$tablica = array_filter(array_map('rtrim', file('wynik.txt')));
print_r($tablica);

print "\n\n";

$tablica = array_filter(array_map('rtrim', file('wynik.txt')), 'strlen');
print_r($tablica);

?>
</pre>

Output:

Array
(
[0] => 0

[1] =>

[2] => blah
)
Array
(
[2] => blah
)
Array
(
[0] => 0
[2] => blah
)

--
Andy Hassall / <an**@andyh.co.uk> / <http://www.andyh.co.uk>
<http://www.andyhsoftware.co.uk/space> Space: disk usage analysis tool