Question

I am trying to send data from PHP to a bash script and then output the data back to the user. Why am I unable to send “beans” to the simple.sh and get it echoed back?

In the end, my goal is to get my web browser to output “beans”. Very simple but I can’t get it to work (complete noob).

Here is my test.php:

<?php
echo "<pre>";
    $var = 'beans';
    exec("/var/www/html/dev/simple.sh $var", $output);
    echo var_dump($output);
echo "</pre>";    
?>

Here is my simple.sh:

read var
echo $var

What am I doing wrong?

Answer 1

You didn’t execute your shell script so here is the correct code :

echo "<pre>";
    $var = 'beans';
    exec("sh /var/www/html/dev/simple.sh $var", $output);
    echo var_dump($output);
echo "</pre>";

Also, your have something wrong with your shell script :

#!/bin/sh
echo $1

Note : command READ is for scan the string from the keyboard only!! if you want to pass it by arguments please just echo these $1, $2, $3,… that is your number of argument you entered one by one.