Fix syntax error

Author: nicolaasuni

CHANGELOG.TXT

@@ -1,3 +1,6 @@
+6.6.2 (2022-12-17)
+	- Ensure pregSplit return type is always array.
+
 6.6.1 (2022-12-12)
 	- Add PHPStan and fix level 1 errors (#307)
 

include/tcpdf_static.php

@@ -1777,7 +1777,7 @@ public static function pregSplit($pattern, $modifiers, $subject, $limit=NULL, $f
 		// the bug only happens on PHP 5.2 when using the u modifier
 		if ((strpos($modifiers, 'u') === FALSE) OR (count(preg_split('//u', "\n\t", -1, PREG_SPLIT_NO_EMPTY)) == 2)) {
 			$ret = preg_split($pattern.$modifiers, $subject, $limit, $flags);
-			if $ret === false {
+			if ($ret === false) {
 				return array();
 			}
 			return $ret;