PHP not able to execute program, though permission available to www-data

Asked Apr 27 '15 at 07:15

Active Apr 27 '15 at 10:51

Viewed 117 times

I have a PHP-code which is as follows:-

<html>
<?php
$output = shell_exec("/home/ak/Documents/Translation/mosesdecoder/bin/moses"); 
echo $output;
?>
</html>

When, I execute this PHP file through browser, no output appears on the browser window. However, I have done chmod -R 775 /home/ak/Documents/Translation/ and thus I know that moses can be executed by everyone.

Further to confirm that the user www-data (the web user) has permissions to execute moses, I executed moses in the my Ubuntu terminal using

sudo -u www-data /home/ak/Documents/Translation/mosesdecoder/bin/moses

and an output, describing how to use the program moses, appeared on the terminal.

Why is the same output not appearing on the browser, when www-data has the permission?

Thakns in advance.

edited Apr 27 '15 at 10:51

asked Apr 27 '15 at 07:15

AvinashK

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Could `moses` be writing to stderr instead of stdout? – Siguza Apr 27 '15 at 11:50
did you confirm if shell_exec is not disabled in your php.ini. ? – Raj Apr 27 '15 at 12:07
@Siguza...yes, that was the problem...thanks...I had to use proc_open() to read the output from std_err – AvinashK Apr 27 '15 at 12:18

PHP not able to execute program, though permission available to www-data

0 Answers0