X-Git-Url: http://git.iain.cx/?a=blobdiff_plain;f=lib%2Fsession.php;h=da4e986327e51922e617e693ef2794682b5f46ea;hb=018b041d077a8740dde27529a1ffc32f4610b7ef;hp=9f415b8f3b8f6bdf0d20ef24c749dd117169e6a3;hpb=f44ed8d0e1de072ea341c013c967714cd0217fee;p=readifood.git

diff --git a/lib/session.php b/lib/session.php
index 9f415b8..da4e986 100644
--- a/lib/session.php
+++ b/lib/session.php
@@ -1,5 +1,22 @@
 <?php
 
+  /* Retrieve the last selected choice in a select field. */
+  function get_last_selected($name) {
+    $key = "last_$name";
+    $ret = $_SESSION[$key];
+    error_log("last selected $name is $ret");
+    return $_SESSION[$key];
+  }
+
+  /* Remember the last selected choice in a select field. */
+  function set_last_selected($name, $value) {
+    if (isset($value)) error_log("setting last selected $name to $value");
+    else error_log("not setting last selected $name null");
+    if (! isset($value)) return;
+    $key = "last_$name";
+    $_SESSION[$key] = $value;
+  }
+
   session_start();
 
 ?>