PHP: Output multiple line command-line outputs as different lines

Question

PHP: Output multiple line command-line outputs as different lines. Sorry if the title is difficult to understand. Basically I want my output like A, instead of B. It currently looks like B. I have tried nl2br. The script I am trying to run is:

Script:

echo "Virus Scan Results:";
$scanme = system('cd /var/www/upload/files; clamscan --remove=yes '.$furl);
printf(nl2br($scanme));

A:

802931t_e_s_t.txt: OK 
----------- SCAN SUMMARY ----------- 
Known viruses: 574585 
Engine version: 0.95.1 
Scanned directories: 0 
Scanned files: 1 
Infected files: 0 
Data scanned: 0.00 MB 
Data read: 0.00 MB (ratio 0.00:1) 
Time: 2.352 sec (0 m 2 s) 
Time: 2.352 sec (0 m 2 s)

B:

802931t_e_s_t.txt: OK ----------- SCAN SUMMARY ----------- Known viruses: 574585 Engine version: 0.95.1 Scanned directories: 0 Scanned files: 1 Infected files: 0 Data scanned: 0.00 MB Data read: 0.00 MB (ratio 0.00:1) Time: 2.352 sec (0 m 2 s) Time: 2.352 sec (0 m 2 s)

Community · Accepted Answer · 2023-11-17 20:01:02Z

4

why are you using nl2br if this is on the command line?

nl2br outputs <br /> tags for new lines... which would have no meaning on command line

Edit

Two things:

1 try

system('cd /var/www/upload/files; clamscan --remove=yes '.$furl, $scanme);

2 You may want to use the exec function instead of system

e.g.

exec('cd /var/www/upload/files; clamscan --remove=yes '.$furl, $scanme);
$scanme = implode("\n",$scanme);

exec ( string $command [, array &$output [, int &$return_var ]] )

edited Nov 17, 2023 at 20:01

CommunityBot

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answered Jun 18, 2009 at 7:14

Jonathan Fingland

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4 Comments

Mentalikryst Over a year ago

The result is: <pre> 733141t_e_s_t.txt: OK ----------- SCAN SUMMARY ----------- Known viruses: 574585 Engine version: 0.95.1 Scanned directories: 0 Scanned files: 1 Infected files: 0 Data scanned: 0.00 MB Data read: 0.00 MB (ratio 0.00:1) Time: 2.305 sec (0 m 2 s) Time: 2.305 sec (0 m 2 s) </pre> It seems to only affect the last line. Got any other ideas?

Mentalikryst Over a year ago

733141t_e_s_t.txt: OK ----------- SCAN SUMMARY ----------- Known viruses: 574585 Engine version: 0.95.1 Scanned directories: 0 Scanned files: 1 Infected files: 0 Data scanned: 0.00 MB Data read: 0.00 MB (ratio 0.00:1) Time: 2.305 sec (0 m 2 s) Time: 2.305 sec (0 m 2 s)

Mentalikryst Over a year ago

Works now, it seems like the $scanme was actually outputting the data without an echo or printf. Thanks for the help.

Jonathan Fingland Over a year ago

no worries. the docs for those functions say system, exec, etc return a string. but it's the "last" line returned. The optional second/third parameter is for an output var.

Josiah · Accepted Answer · 2009-06-18 07:28:36Z

1

Have you tried just printing the output of the command directly?

echo "Virus Scan Results:";
echo exec('cd /var/www/upload/files; clamscan --remove=yes '.$furl);

PS. You really should sanitise the input like so (if you are not doing so already):

$furl = escapeshellarg($furl)

escapeshellarg() - Escape a string to be used as a shell argument

answered Jun 18, 2009 at 7:28

Josiah

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Comments

carlpett · Accepted Answer · 2009-06-18 08:23:50Z

0

If you are running on the commandline, a newline is represented as '\n', or '\r\n' in a Windows environment. So make sure there is a \n at the end of each line, and you should get the output you want. Edit:
Tom: Oops. Fixed.

edited Jun 18, 2009 at 8:23

answered Jun 18, 2009 at 7:21

carlpett

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