From 1ae651655888383a4d7f97fbf6e97a7ac00a9630 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Sat, 10 Mar 2012 16:11:34 +0200
Subject: Remove PHP 5.1.6-specific code

---
 system/core/Input.php | 31 +------------------------------
 system/core/URI.php   |  4 +---
 2 files changed, 2 insertions(+), 33 deletions(-)

(limited to 'system')

diff --git a/system/core/Input.php b/system/core/Input.php
index 54b7e0923..901b4147e 100755
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -366,36 +366,7 @@ class CI_Input {
 	*/
 	public function valid_ip($ip)
 	{
-		// if php version >= 5.2, use filter_var to check validate ip.
-		if (function_exists('filter_var'))
-		{
-			return (bool) filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
-		}
-
-		$ip_segments = explode('.', $ip);
-
-		// Always 4 segments needed
-		if (count($ip_segments) !== 4)
-		{
-			return FALSE;
-		}
-		// IP can not start with 0
-		if ($ip_segments[0][0] == '0')
-		{
-			return FALSE;
-		}
-		// Check each segment
-		foreach ($ip_segments as $segment)
-		{
-			// IP segments must be digits and can not be
-			// longer than 3 digits or greater then 255
-			if ($segment == '' OR preg_match('/[^0-9]/', $segment) OR $segment > 255 OR strlen($segment) > 3)
-			{
-				return FALSE;
-			}
-		}
-
-		return TRUE;
+		return (bool) filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/core/URI.php b/system/core/URI.php
index db5b8e44b..4a2e87c2a 100755
--- a/system/core/URI.php
+++ b/system/core/URI.php
@@ -444,9 +444,7 @@ class CI_URI {
 				return array();
 			}
 
-			return function_exists('array_fill_keys')
-				? array_fill_keys($default, FALSE)
-				: array_combine($default, array_fill(0, count($default), FALSE));
+			return array_fill_keys($default, FALSE);
 		}
 
 		$segments = array_slice($this->$segment_array(), ($n - 1));
-- 
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