ConsistentImplodeRector

Changes various implode forms to consistent one

 class SomeClass
 {
     public function run(array $items)
     {
-        $itemsAsStrings = implode($items);
-        $itemsAsStrings = implode($items, '|');
+        $itemsAsStrings = implode('', $items);
+        $itemsAsStrings = implode('|', $items);
     }
 }

Configure your rector.php:

<?php

use Rector\CodingStyle\Rector\FuncCall\ConsistentImplodeRector;
use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withRules([
        ConsistentImplodeRector::class,
    ]);