Apply @xabbuh's suggestion

alexpott · alexpott · commit 1fc3b02225de · 2025-01-07T08:21:10.000Z
diff --git a/src/Symfony/Component/Yaml/Parser.php b/src/Symfony/Component/Yaml/Parser.php
@@ -1206,11 +1206,8 @@ private function lexInlineStructure(int &$cursor, string $closingTag, bool $cons
                         $value .= $this->currentLine[$cursor];
                         ++$cursor;
 
-                        if ($consumeUntilEol && isset($this->currentLine[$cursor]) && (strspn($this->currentLine, ' ', $cursor) + $cursor) < strlen($this->currentLine)) {
-                            $remain = trim(substr($this->currentLine, $cursor));
-                            if (!str_starts_with($remain, '#')) {
-                                throw new ParseException(sprintf('Unexpected token "%s".', $remain));
-                            }
+                        if ($consumeUntilEol && isset($this->currentLine[$cursor]) && ($whitespaces = strspn($this->currentLine, ' ', $cursor) + $cursor) < strlen($this->currentLine) && '#' !== $this->currentLine[$whitespaces]) {
+                            throw new ParseException(sprintf('Unexpected token "%s".', trim(substr($this->currentLine, $cursor))));
                         }
 
                         return $value;
