inc/collectd: consistently return false instead of an empty array or false

This means we have to check the return value of these functions for
example before doing a foreach. We can't just do a foreach and assume the
return value of a function is an array, while it can be false and results
in a PHP warning.

Closes: https://github.com/pommi/CGP/pull/68

1 files changed, 1 insertions, 3 deletions

diff --git a/detail.php b/detail.php
index 4eacc80..33db2b9 100644
--- a/detail.php
+++ b/detail.php
@@ -30,9 +30,7 @@ html_start();
 printf('<fieldset id="%s">', $host);
 printf('<legend>%s</legend>', $host);
 
-$plugins = collectd_plugins($host);
-
-if(!$plugins) {
+if (!$plugins = collectd_plugins($host)) {
         echo "Unknown host\n";
         return false;
 }