[Bug 265395] mail/squirrelmail: INBOX does not populate messages after upgrading php 7.4 to php 8.0

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265395

--- Comment #6 from Zsolt Udvari <uzsolt@uzsolt.hu> ---
IMHO revision 14978 ("Fix poorly written timezone parsing") fixes this bug:

$ svn diff -r14978:14976
Index: functions/date.php
===================================================================
--- functions/date.php  (revision 14978)
+++ functions/date.php  (revision 14976)
@@ -81,16 +81,13 @@ function getGMTSeconds($stamp, $tzc) {
             break;
     }
     $neg = false;
-    if (preg_match('/^([+-]?)(\d\d)(\d\d)$/', $tzc, $matches)) {
-        if ($matches[1] === '-')
-            $neg = true;
-        $hh = $matches[2];
-        $mm = $matches[3];
-    } else {
-        // anything not listed above and not in the form +0400
-        // defaults to UTC
-        $hh = $mm = 0;
+    if (substr($tzc, 0, 1) == '-') {
+        $neg = true;
+    } else if (substr($tzc, 0, 1) != '+') {
+        $tzc = '+'.$tzc;
     }
+    $hh = substr($tzc,1,2);
+    $mm = substr($tzc,3,2);
     $iTzc = ($hh * 60 + $mm) * 60;
     if ($neg) $iTzc = -1 * (int) $iTzc;
     /* stamp in gmt */


I send a bug report to update squirrelmail:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269396

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