From b5c18e8a17024d4af8b2ea508d5ded2570893f07 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Thu, 12 Feb 2004 19:37:04 +0000
Subject: - Patch 5592 by Goba: introduced a new function, drupal_map_assoc().

---
 includes/common.inc | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'includes/common.inc')

diff --git a/includes/common.inc b/includes/common.inc
index 82c665179..8815458be 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -1157,6 +1157,33 @@ function drupal_page_footer() {
   module_invoke_all("exit");
 }
 
+/**
+ * Walks through the provided array and constructs an associative
+ * array out of it. The keys of the resulting array will be the
+ * values of the passed array. The values will either be the same
+ * (if no function was specified), or the results of the function
+ * given the value.
+ *
+ * @param $array An array
+ * @param $function A name of a function to apply to all values
+ */
+function drupal_map_assoc($array, $function = NULL) {
+  if (!isset($function)) {
+    $result = array();
+    foreach ($array as $value) {
+      $result[$value] = $value;
+    }
+    return $result;
+  }
+  elseif (function_exists($function)) {
+    $result = array();
+    foreach($array as $value) {
+      $result[$value] = $function($value);
+    }
+    return $result;
+  }
+}
+
 /**
  * Wrapper around xml_parser_create() which extracts the encoding from the XML
  * data first and sets the output encoding to UTF-8. This function should be
-- 
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