php只将数组中的变量返回到网页中

Question

I am currently screwing around with php and python. I've made a simple python script which is literally just - print "Hello World"

My php script (which is inside my index.php main page) is as follows:

<?php 
$output = null;
exec('C:\\Python27\\python.exe py\\test.py', $output, $return);
print_r($output);
?>

My problem is that it returns this:

Array ( [0] => Hello World )

Does anyone know how to only return Hello World into my webpage? Any help would be greatly appreciated.

Answer 1

The simplest way is to replace print_r($output) with echo $output[0].

But as the exec-Statement returns an array with every line, it only works with a single-line return-value from the python-script. If you really want the whole output, you have to loop through the array.