From f444f651e5eb34a8aa41e398c7790ed0435cf84b Mon Sep 17 00:00:00 2001
From: fusionate <nate@fusionpbx.com>
Date: Mon, 29 May 2023 22:23:40 +0000
Subject: [PATCH] TCPDF: Updates for PHP 8.1

---
 resources/tcpdf/include/tcpdf_static.php | 6 +++---
 resources/tcpdf/tcpdf.php                | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/resources/tcpdf/include/tcpdf_static.php b/resources/tcpdf/include/tcpdf_static.php
index 8b82eecefb..feabb11a1c 100644
--- a/resources/tcpdf/include/tcpdf_static.php
+++ b/resources/tcpdf/include/tcpdf_static.php
@@ -1136,7 +1136,7 @@ class TCPDF_STATIC {
 	 * @see setHtmlVSpace()
 	 * @public static
 	 */
-	public static function fixHTMLCode($html, $default_css='', $tagvs='', $tidy_options='', &$tagvspaces) {
+	public static function fixHTMLCode($html, $default_css='', $tagvs='', $tidy_options='', &$tagvspaces=[]) {
 		// configure parameters for HTML Tidy
 		if ($tidy_options === '') {
 			$tidy_options = array (
@@ -1787,7 +1787,7 @@ class TCPDF_STATIC {
 	 * @since 6.0.023
 	 * @public static
 	 */
-	public static function pregSplit($pattern, $modifiers, $subject, $limit=NULL, $flags=NULL) {
+	public static function pregSplit($pattern, $modifiers, $subject, $limit=-1, $flags=0) {
 		// the bug only happens on PHP 5.2 when using the u modifier
 		if ((strpos($modifiers, 'u') === FALSE) OR (count(preg_split('//u', "\n\t", -1, PREG_SPLIT_NO_EMPTY)) == 2)) {
 			return preg_split($pattern.$modifiers, $subject, $limit, $flags);
@@ -2485,7 +2485,7 @@ class TCPDF_STATIC {
 	 * @since 5.0.010 (2010-05-17)
 	 * @public static
 	 */
-	public static function setPageBoxes($page, $type, $llx, $lly, $urx, $ury, $points=false, $k, $pagedim=array()) {
+	public static function setPageBoxes($page, $type, $llx, $lly, $urx, $ury, $points=false, $k=1, $pagedim=array()) {
 		if (!isset($pagedim[$page])) {
 			// initialize array
 			$pagedim[$page] = array();
diff --git a/resources/tcpdf/tcpdf.php b/resources/tcpdf/tcpdf.php
index 859694a45f..326fa7f6ef 100644
--- a/resources/tcpdf/tcpdf.php
+++ b/resources/tcpdf/tcpdf.php
@@ -4134,8 +4134,8 @@ class TCPDF {
 			// SHY character will not be printed
 			return (0);
 		}
-		if (isset($this->CurrentFont['cw'][$char])) {
-			$w = $this->CurrentFont['cw'][$char];
+		if (isset($this->CurrentFont['cw'][floor($char)])) {
+			$w = $this->CurrentFont['cw'][floor($char)];
 		} elseif (isset($this->CurrentFont['dw'])) {
 			// default width
 			$w = $this->CurrentFont['dw'];
@@ -7039,7 +7039,7 @@ class TCPDF {
 		}
 		if ($newimage) {
 			//First use of image, get info
-			$type = strtolower($type);
+			$type = strtolower($type ?? '');
 			if ($type == '') {
 				$type = TCPDF_IMAGES::getImageFileType($file, $imsize);
 			} elseif ($type == 'jpg') {