Script.php: why use the function trim?

2020-04-23 10:10:58 +08:00 · 2020-04-23 10:10:58 +08:00 · a89b8f4e0d
parent b7d6ae1bcf
commit a89b8f4e0d
1 changed files with 1 additions and 1 deletions
--- a/Script.php
+++ b/Script.php
@ -830,7 +830,7 @@ if(strlen($_FILES['attachment1']['name']) > 2 ) {

    // When $group_id is not properly initialized, use integer 0 as its value.
    // This temporarily fixed the "Students unable to submit assignment after a recent change" bug at http://118.25.96.118/bugzilla/show_bug.cgi?id=65
-    if (trim($group_id) === '') {
+    if (trim($group_id) === '') { // when $group_id is an empty string or contains only whitespace characters.
         $group_id = 0; // FIXME
    }