PHP exec/shell_exec/system not working through browser

Question

I am running an SCO Unix box with apache version 1.3.33 and PHP version 4.4. I can properly execute the exec command through the cli, but run into trouble with trying to execute the script via a browser. My settings are:

safe mode off
full read/write/exec permissions
displaying all errors
no disabled functions

My code: test_script.php in htdocs dir

<?php
exec('ls',$out,$rval);
echo "Output:<hr />";
print "<pre>"; print_r($out); print "</pre>";
echo "Return Value:<hr />";
echo $rval;
?>

I've tried setting the executable binary path explicitly also. The test script is the same User/Group as apache. I've also tried adding 2>&1 to the arg, but see no change. Thank you in advance.

See here for similar.

@AbiusX, the output in the browser is an empty array. Return value is 1. — user320487
– user320487, Commented Mar 14, 2011 at 23:43
Please be aware that the PHP developers themselves stopped supporting PHP4 literally years ago, and that Apache 1.3 is practically prehistoric. If you didn't already know you were in the stone age by using SCO Unix, then please let this be an appropriate notice. :) — Charles
– Charles, Commented Mar 14, 2011 at 23:51
Can you try proc_open and see what happens? It's complex to use, but there's a pretty good example there in the docs that should work for you. — Charles
– Charles, Commented Mar 14, 2011 at 23:52

Shoshan · Accepted Answer · 2011-03-20 18:20:30Z

6

try

$output = shell_exec('ls /tmp/ 2>&1')

you might be having an issue with permissions to current directory for the user running the web page.

you can also try whoami command.

answered Mar 20, 2011 at 18:20

Shoshan

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Teodoros · Accepted Answer · 2013-03-27 01:01:49Z

0

Sometimes these functions are disabled, you have to enable them in php.ini

answered Mar 27, 2013 at 1:01

Teodoros

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