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-rw-r--r--include/functions_calendar.inc.php20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/functions_calendar.inc.php b/include/functions_calendar.inc.php
index 9191bb157..73df86fbb 100644
--- a/include/functions_calendar.inc.php
+++ b/include/functions_calendar.inc.php
@@ -289,4 +289,24 @@ WHERE id IN (' . implode(',',$page['items']) .')';
}
pwg_debug('end initialize_calendar');
}
+
+/*
+ * callback to sort array with date comparaison
+ *
+ **/
+function date_compare(&$a, &$b)
+{
+ $parts = explode('-', $a);
+ foreach ($parts as &$p) {
+ $p = (int)$p;
+ }
+ $a = implode('-', $parts);
+ $parts = explode('-', $b);
+ foreach ($parts as &$p) {
+ $p = (int)$p;
+ }
+ $b = implode('-', $parts);
+
+ return strcmp($a, $b);
+}
?> \ No newline at end of file