standardize_increment
Increment and decrement operators should be used if possible.
--- Original +++ New <?php -$i += 1; +++$i;
--- Original +++ New <?php -$i -= 1; +--$i;
The rule is part of the following rule sets:
@PhpCsFixer
@Symfony
PhpCsFixer\Fixer\Operator\StandardizeIncrementFixer