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-rw-r--r--include/text.php13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/text.php b/include/text.php
index d4a4d5580..f408e0df6 100644
--- a/include/text.php
+++ b/include/text.php
@@ -1541,3 +1541,16 @@ function protect_sprintf($s) {
return(str_replace('%','%%',$s));
}
+
+function is_a_date_arg($s) {
+ $i = intval($s);
+ if($i > 1900) {
+ $y = date('Y');
+ if($i <= $y+1 && strpos($s,'-') == 4) {
+ $m = intval(substr($s,5));
+ if($m > 0 && $m <= 12)
+ return true;
+ }
+ }
+ return false;
+}