Fix null array offset in _destroy() for PHP 8.5

kolotov · kolotov · commit 5342602eb1da · 2026-02-18T15:16:20.000+02:00
diff --git a/tcpdf.php b/tcpdf.php
@@ -7884,7 +7884,7 @@ public function Output($name='doc.pdf', $dest='I') {
 	 * @since 4.5.016 (2009-02-24)
 	 */
 	public function _destroy($destroyall=false, $preserve_objcopy=false) {
-		if (isset(self::$cleaned_ids[$this->file_id])) {
+		if (isset($this->file_id) && isset(self::$cleaned_ids[$this->file_id])) {
 			$destroyall = false;
 		}
 		if ($destroyall AND !$preserve_objcopy && isset($this->file_id)) {

Original file line number	Diff line number	Diff line change
`@@ -7884,7 +7884,7 @@ public function Output($name='doc.pdf', $dest='I') {`
`7884`	`7884`	`* @since 4.5.016 (2009-02-24)`
`7885`	`7885`	`*/`
`7886`	`7886`	`public function _destroy($destroyall=false, $preserve_objcopy=false) {`
`7887`		`- if (isset(self::$cleaned_ids[$this->file_id])) {`
	`7887`	`+ if (isset($this->file_id) && isset(self::$cleaned_ids[$this->file_id])) {`
`7888`	`7888`	`$destroyall = false;`
`7889`	`7889`	`}`
`7890`	`7890`	`if ($destroyall AND !$preserve_objcopy && isset($this->file_id)) {`