From 4a35f027659248979ed9a9ae1a524d12085c552b Mon Sep 17 00:00:00 2001
From: Christian Boltz <postfixadmin@cboltz.de>
Date: Mon, 22 Oct 2007 23:49:10 +0000
Subject: [PATCH] - new functions safeget, safepost, safeserver   Action: get
 value from $_GET/$_POST/$_SERVER[$param], otherwise $default   Call: $param =
 safeget('param')   # instead of $param = $_GET['param']   - or -        
 $param = safeget('param', 'default')   useful to avoid "undefined index"
 warnings ;-)

git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@159 a1433add-5e2c-0410-b055-b7f2511e0802
---
 functions.inc.php | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/functions.inc.php b/functions.inc.php
index 193b3cc4..15bd93b7 100644
--- a/functions.inc.php
+++ b/functions.inc.php
@@ -328,6 +328,33 @@ function escape_string ($string)
 }
 
 
+// safeget
+// Action: get value from $_GET[$param], or $default if $_GET[$param] is not set
+// Call: $param = safeget('param')   # replaces $param = $_GET['param']
+//       - or -
+//       $param = safeget('param', 'default')
+function safeget ($param, $default="") {
+	$retval=$default;
+	if (isset($_GET["$param"])) $retval=$_GET["$param"];
+	return $retval;
+}
+
+// safepost
+// same as safeget, but for $_POST
+function safepost ($param, $default="") {
+	$retval=$default;
+	if (isset($_POST["$param"])) $retval=$_POST["$param"];
+	return $retval;
+}
+
+// safeserver
+// same as safeget, but for $_SERVER
+function safeserver ($param, $default="") {
+	$retval=$default;
+	if (isset($_SERVER["$param"])) $retval=$_SERVER["$param"];
+	return $retval;
+}
+
 
 //
 // get_domain_properties