Shortening (HTML/PHP)

miseria · 05-17-2007, 04:34 AM

Hey all. I'm sure this is quite simple but basically I'm displaying a text file in a textarea but only want to display a certain number of lines. I'm using 'fread' but I think you can only set the number of bytes rather than number of lines. Anyway, there are three ways I'm looking at doing it:

1. With the fread function, somehow.
2. When the contents of the text file are stored as a variable.
3. ..or with the 'textarea' field itself.

Just need a little bit of guidance.

Thanks

**Eric** · 05-17-2007, 05:03 AM

Something like this:

PHP Code:

  <?php

 
$lines = preg_split("#\n#", file_get_contents('yourfile.txt'), -1, PREG_SPLIT_NO_EMPTY);

$data = '';

$limit = 5;

 
for ($i = 0; $i <= $limit; $i++)

{

    $data .= trim($lines[$i]) . "\n";

}

 
unset($lines);

 
?>

miseria · 05-17-2007, 09:16 AM

Thanks for the help. Small donation sent

Barrucadu · 05-17-2007, 11:20 AM

Small update for SV's code.

You can replace:

PHP Code:

  $lines = preg_split("#\n#", file_get_contents('yourfile.txt'), -1, PREG_SPLIT_NO_EMPTY);

With:

PHP Code:

  $lines = file('yourfile.txt');

I would assume my way is faster as it only uses 1 function.

sdsinc · 05-17-2007, 02:30 PM

http://php.net/manual/en/function.fgets.php:
Reading a file line by line

PHP Code:

  <?php

$handle = @fopen("/tmp/inputfile.txt", "r");

if ($handle) {

    while (!feof($handle)) {

        $buffer = fgets($handle, 4096);

        echo $buffer;

    }

    fclose($handle);

}

?>

05-17-2007, 04:34 AM	#1 (permalink)
miseria SQLdumpster.com Join Date: Jun 2005 Location: West Sussex, UK Posts: 545 205.50 NP$ (Donate)	Shortening (HTML/PHP) Hey all. I'm sure this is quite simple but basically I'm displaying a text file in a textarea but only want to display a certain number of lines. I'm using 'fread' but I think you can only set the number of bytes rather than number of lines. Anyway, there are three ways I'm looking at doing it: 1. With the fread function, somehow. 2. When the contents of the text file are stored as a variable. 3. ..or with the 'textarea' field itself. Just need a little bit of guidance. Thanks __________________ !!!!!!! see something you like? Accepting offers for great affiliate websites !!!!!!! Free Databases for your Website \| All Things Playstation 3 Website Design Books \| Music While You Work? \| Computer Gadgets

05-17-2007, 05:03 AM	#2 (permalink)
Eric NPQ's PA, Slave, and On Call Coder Technical Services Join Date: Mar 2005 Posts: 4,545 0.71 NP$ (Donate)	Something like this: PHP Code: `<?php $lines = preg_split("#\n#", file_get_contents('yourfile.txt'), -1, PREG_SPLIT_NO_EMPTY); $data = ''; $limit = 5; for ($i = 0; $i <= $limit; $i++) { $data .= trim($lines[$i]) . "\n"; } unset($lines); ?>` __________________

05-17-2007, 09:16 AM	#3 (permalink)
miseria SQLdumpster.com Join Date: Jun 2005 Location: West Sussex, UK Posts: 545 205.50 NP$ (Donate)	Thanks for the help. Small donation sent __________________ !!!!!!! see something you like? Accepting offers for great affiliate websites !!!!!!! Free Databases for your Website \| All Things Playstation 3 Website Design Books \| Music While You Work? \| Computer Gadgets

05-17-2007, 11:20 AM	#4 (permalink)
Barrucadu Barru. Join Date: Aug 2005 Location: East Yorkshire, England Posts: 2,731 78.50 NP$ (Donate)	Small update for SV's code. You can replace: PHP Code: `$lines = preg_split("#\n#", file_get_contents('yourfile.txt'), -1, PREG_SPLIT_NO_EMPTY);` With: PHP Code: `$lines = file('yourfile.txt');` I would assume my way is faster as it only uses 1 function. __________________ Website \| Blog \| Uzbl (my branch) 9thSeptember2009.com

05-17-2007, 02:30 PM	#5 (permalink)
sdsinc Domains my Dominion Join Date: Aug 2005 Location: Web 1.0 Posts: 6,285 1,095.94 NP$ (Donate)	http://php.net/manual/en/function.fgets.php: Reading a file line by line PHP Code: `<?php $handle = @fopen("/tmp/inputfile.txt", "r"); if ($handle) { while (!feof($handle)) { $buffer = fgets($handle, 4096); echo $buffer; } fclose($handle); } ?>` __________________ Buy now - MassDeveloper.com $500

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