From 0edbdab1d8cc8796cebaab1b22cd3f67e3fd5bdd Mon Sep 17 00:00:00 2001
From: kjh <kjhied@gmail.com>
Date: Tue, 24 May 2022 08:44:52 +0000
Subject: [PATCH] PHP8.1 Syntax/Functionality Changes & Deprecations List Check

---
 lib/PHPExcel/Calculation/DateTime.php        |  8 ++++----
 plugin/PHPMailer/extras/ntlm_sasl_client.php |  2 +-
 plugin/kcaptcha/kcaptcha.lib.php             | 10 +++++-----
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/lib/PHPExcel/Calculation/DateTime.php b/lib/PHPExcel/Calculation/DateTime.php
index 72f4c7a23..76d471b29 100644
--- a/lib/PHPExcel/Calculation/DateTime.php
+++ b/lib/PHPExcel/Calculation/DateTime.php
@@ -534,7 +534,7 @@ class PHPExcel_Calculation_DateTime
                 if ($testVal2 !== false) {
                     $testVal3 = strtok('- ');
                     if ($testVal3 === false) {
-                        $testVal3 = strftime('%Y');
+                        $testVal3 = date('Y');
                     }
                 } else {
                     return PHPExcel_Calculation_Functions::VALUE();
@@ -554,16 +554,16 @@ class PHPExcel_Calculation_DateTime
         if (($PHPDateArray !== false) && ($PHPDateArray['error_count'] == 0)) {
             // Execute function
             if ($PHPDateArray['year'] == '') {
-                $PHPDateArray['year'] = strftime('%Y');
+                $PHPDateArray['year'] = date('Y');
             }
             if ($PHPDateArray['year'] < 1900) {
                 return PHPExcel_Calculation_Functions::VALUE();
             }
             if ($PHPDateArray['month'] == '') {
-                $PHPDateArray['month'] = strftime('%m');
+                $PHPDateArray['month'] = date('m');
             }
             if ($PHPDateArray['day'] == '') {
-                $PHPDateArray['day'] = strftime('%d');
+                $PHPDateArray['day'] = date('d');
             }
             $excelDateValue = floor(
                 PHPExcel_Shared_Date::FormattedPHPToExcel(
diff --git a/plugin/PHPMailer/extras/ntlm_sasl_client.php b/plugin/PHPMailer/extras/ntlm_sasl_client.php
index 3fd539240..f412ef006 100644
--- a/plugin/PHPMailer/extras/ntlm_sasl_client.php
+++ b/plugin/PHPMailer/extras/ntlm_sasl_client.php
@@ -66,7 +66,7 @@ class ntlm_sasl_client_class
     public function NTLMResponse($challenge, $password)
     {
         $unicode = $this->ASCIIToUnicode($password);
-        $md4 = mhash(MHASH_MD4, $unicode);
+        $md4 = hash('md4', $unicode, true);
         $padded = $md4 . str_repeat(chr(0), 21 - strlen($md4));
         $iv_size = mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB);
         $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
diff --git a/plugin/kcaptcha/kcaptcha.lib.php b/plugin/kcaptcha/kcaptcha.lib.php
index 6354399b9..3da6a84d4 100644
--- a/plugin/kcaptcha/kcaptcha.lib.php
+++ b/plugin/kcaptcha/kcaptcha.lib.php
@@ -171,10 +171,10 @@ class KCAPTCHA{
 				if($sx<0 || $sy<0 || $sx>=$width-1 || $sy>=$height-1){
 					continue;
 				}else{
-					$color=imagecolorat($img, $sx, $sy) & 0xFF;
-					$color_x=imagecolorat($img, $sx+1, $sy) & 0xFF;
-					$color_y=imagecolorat($img, $sx, $sy+1) & 0xFF;
-					$color_xy=imagecolorat($img, $sx+1, $sy+1) & 0xFF;
+					$color=imagecolorat($img, (int)$sx, (int)$sy) & 0xFF;
+					$color_x=imagecolorat($img, (int)$sx+1, (int)$sy) & 0xFF;
+					$color_y=imagecolorat($img, (int)$sx, (int)$sy+1) & 0xFF;
+					$color_xy=imagecolorat($img, (int)$sx+1, (int)$sy+1) & 0xFF;
 				}
 
 				if($color==255 && $color_x==255 && $color_y==255 && $color_xy==255){
@@ -204,7 +204,7 @@ class KCAPTCHA{
 					$newblue=$newcolor0*$foreground_color[2]+$newcolor*$background_color[2];
 				}
 
-				imagesetpixel($img2, $x, $y, imagecolorallocate($img2, $newred, $newgreen, $newblue));
+				imagesetpixel($img2, (int)$x, (int)$y, imagecolorallocate($img2, (int)$newred, (int)$newgreen, (int)$newblue));
 			}
 		}