Follow advice given in PHP-CS-Fixer/PHP-CS-Fixer#2559 (comment)

sebastianbergmann · sebastianbergmann · commit dce8552aee94 · 2023-07-11T09:12:59.000+02:00
diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
@@ -31,6 +31,10 @@
         'binary_operator_spaces' => [
             'operators' => [
                 '=' => 'align_single_space_minimal',
+                '+=' => 'align_single_space_minimal',
+                '-=' => 'align_single_space_minimal',
+                '*=' => 'align_single_space_minimal',
+                '/=' => 'align_single_space_minimal',
                 '=>' => 'align_single_space_minimal',
             ],
         ],
