Rule single_blank_line_at_eof A PHP file without end tag must always end with a single empty line feed. Examples Example #1 --- Original +++ New <?php -$a = 1; \ No newline at end of file +$a = 1; Example #2 --- Original +++ New <?php $a = 1; - Rule sets The rule is part of the following rule sets: @PER @PER-CS @PER-CS1.0 @PER-CS2.0 @PSR2 @PSR12 @PhpCsFixer @Symfony Source class PhpCsFixer\Fixer\Whitespace\SingleBlankLineAtEofFixer