Capturing output from a system command

[csandbach]

Hi,

I'm new to PHP, im used to coding in asp, so please bare with me. What i would like is to output the result to a text file

<?php
$_ip = $_SERVER['REMOTE_ADDR'];
echo "<b>Enter the IP or the domain name of the server that you are trying to route.</b><br>";
echo "<form method='post' action='?do=route'><input type='text' name='domain' class='input_login' value='$_ip'>&nbsp;<input type='submit' value='Route' class='input_login'></form>";
if($_GET['do'] == 'route')
{
$_domain = $_GET['domain'];
        echo "<pre>";
                   system ("tracert $_domain") ;
          echo "</pre>";
}
echo "<br>";
 
 
$your_data = "This is the data to be stored in the text file.";
 
// Open the file and erase the contents if any
$fp = fopen("hostnamehere.txt", "w");
 
// Write the data to the file
fwrite($fp, $your_data);
 
// Close the file
fclose($fp);
 
?> 

I have combined 2 files, a tracert file and one that writes to a text file, how do i define the output of the traceroute as a variable so i can pass it to the part that writes to a text file, i have tried a few ways but end up getting errors.

Any help appreciated.

Chris.

[pbmods]

Heya, Chris. Welcome to TSDN!

Please use CODE tags when posting source code. See the REPLY GUIDELINES on the right side of the page next time you post.

Changed thread title to better describe the problem (did you know that threads whose titles contain phrases such as, 'noob' or 'need help' actually get FEWER responses?).

Check out the exec() function.

[jx2]

i am not sure i dio understand what you asking about
do you want to write to file output from system() ?

[php]
$output = exec ("tracert $_domain",$a) ;

foreach ($a as $k=>$v){
$your_data = $your_data. "$v\n";
}
[/php]


i thought system() return output ...
well...
thanks both of you
now i know :-)

regards
jx2

[Atli]

Hi.

This is also possible.

// Start output buffering
ob_start();
 
// Do tracert
system ("tracert $_domain");
 
// Get the output buffer
$buffer = ob_get_contents();
 
// Stop and clean the output buffer
ob_end_clean();
 
// Write to file
$fh = fopen("myfile.txt", "w");
fwrite($fh, $buffer);
fclose($fh);
 

[pbmods]

Heya, jx2.

system() outputs the result.
exec() returns it. Sort of.

exec() *returns* the last line of the output. If you want to capture *all* of the output, you need to pass a variable (by reference) as the second parameter.

http://php.net/manual/en/function.exec.php