From: kink <kink@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Wed, 8 Feb 2012 12:11:18 +0000 (+0000)
Subject: hex2bin is introduced in PHP 5.4
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=f19ee57dce51c639fbfb2c2e3a29df74504ac9ca;p=squirrelmail.git

hex2bin is introduced in PHP 5.4


git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@14277 7612ce4b-ef26-0410-bec9-ea0150e637f0
---

diff --git a/plugins/mail_fetch/functions.php b/plugins/mail_fetch/functions.php
index a91da7bf..1c4fcd9e 100644
--- a/plugins/mail_fetch/functions.php
+++ b/plugins/mail_fetch/functions.php
@@ -312,18 +312,21 @@ function mail_fetch_folderact_function($args) {
 // end of hooked functions
 
 /**
- * hex2bin - document me
+ * hex2bin - convert a hexadecimal string into binary
+ * Exists since PHP 5.4.
  */
-function hex2bin( $data ) {
+if ( ! function_exists('hex2bin') ) {
+    function hex2bin( $data ) {
 
-    /* Original code by josh@superfork.com */
+        /* Original code by josh@superfork.com */
 
-    $len = strlen($data);
-    $newdata = '';
-    for( $i=0; $i < $len; $i += 2 ) {
-        $newdata .= pack( "C", hexdec( substr( $data, $i, 2) ) );
+        $len = strlen($data);
+        $newdata = '';
+        for( $i=0; $i < $len; $i += 2 ) {
+            $newdata .= pack( "C", hexdec( substr( $data, $i, 2) ) );
+        }
+        return $newdata;
     }
-    return $newdata;
 }
 
 function mf_keyED( $txt ) {