X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=WEB-INF%2Flib%2Fcommon.lib.php;h=e09a943f029bd7e855676f130c3924daf13b073f;hb=137822b2c8874dd8a5b56b58774d50f09c122220;hp=f483b3d4c0ca04af33f7d107e438568ec3fc28a8;hpb=30634c0b3869d459552df1da06ec264fb1e6b086;p=timetracker.git

diff --git a/WEB-INF/lib/common.lib.php b/WEB-INF/lib/common.lib.php
index f483b3d4..e09a943f 100644
--- a/WEB-INF/lib/common.lib.php
+++ b/WEB-INF/lib/common.lib.php
@@ -165,7 +165,7 @@ function check_extension($ext)
 // isTrue is a helper function to return correct false for older config.php values defined as a string 'false'.
 function isTrue($val)
 {
-  return ($val === true);
+  return (defined($val) && constant($val) === true);
 }
 
 // ttValidString is used to check user input to validate a string.
@@ -406,3 +406,14 @@ function ttDateToUserFormat($date)
   $o_date = new DateAndTime(DB_DATEFORMAT, $date);
   return $o_date->toString($user->date_format);
 }
+
+// ttRandomString generates a random alphanumeric string.
+function ttRandomString($length = 32) {
+  $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+  $charactersLength = strlen($characters);
+  $randomString = '';
+  for ($i = 0; $i < $length; $i++) {
+    $randomString .= $characters[rand(0, $charactersLength - 1)];
+  }
+  return $randomString;
+}