Update priority

src/Fixer/Operator/NoUselessConcatOperatorFixer.php

@@ -54,7 +54,7 @@ public function getDefinition(): FixerDefinitionInterface
      * {@inheritdoc}
      *
      * Must run before DateTimeCreateFromFormatCallFixer, EregToPregFixer, PhpUnitDedicateAssertInternalTypeFixer, RegularCallableCallFixer, SetTypeToCastFixer.
-     * Must run after NoBinaryStringFixer, SingleQuoteFixer.
+     * Must run after ExplicitStringVariableFixer, NoBinaryStringFixer, SingleQuoteFixer.
      */
     public function getPriority(): int
     {

src/Fixer/StringNotation/ExplicitStringVariableFixer.php

@@ -52,11 +52,12 @@ public function getDefinition(): FixerDefinitionInterface
     /**
      * {@inheritdoc}
      *
+     * Must run before NoUselessConcatOperatorFixer.
      * Must run after BacktickToShellExecFixer.
      */
     public function getPriority(): int
     {
-        return 0;
+        return 6;
     }
 
     public function isCandidate(Tokens $tokens): bool

tests/AutoReview/FixerFactoryTest.php

@@ -442,6 +442,9 @@ private static function getFixersPriorityGraph(): array
                 'heredoc_to_nowdoc',
                 'single_quote',
             ],
+            'explicit_string_variable' => [
+                'no_useless_concat_operator',
+            ],
             'final_class' => [
                 'protected_to_private',
                 'self_static_accessor',

tests/Fixtures/Integration/priority/explicit_string_variable,no_useless_concat_operator.test

@@ -0,0 +1,13 @@
+--TEST--
+Integration of fixers: explicit_string_variable,no_useless_concat_operator.
+--RULESET--
+{"no_useless_concat_operator": true, "explicit_string_variable": true}
+--EXPECT--
+<?php
+
+$foo = "bar {$baz}qux";
+
+--INPUT--
+<?php
+
+$foo = "bar $baz" . "qux";