From 11fe0b47f21730e2f955ae63896bce2962af1829 Mon Sep 17 00:00:00 2001
From: Christian Schneider
Date: Thu, 24 Jul 2008 13:25:20 +0000
Subject: Only create function for same expression once

---
 it.class | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/it.class b/it.class
index addcf64..ab56894 100644
--- a/it.class
+++ b/it.class
@@ -650,7 +650,10 @@ function date($format = "", $stamp = null)
  */
 function map($expression, $array)
 {
-	$func = create_function('$k,$v', "return $expression;");
+	static $cache = array();
+
+	if (!($func = $cache[$expression]))
+		$func = $cache[$expression] = create_function('$k,$v', "return $expression;");
 
 	foreach ($array as $k => $v)
 		$result[$k] = $func($k, $v);
-- 
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