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Configurable

NestedFuncCallsToPipeOperatorRector

Convert multiple nested function calls in single line to |> pipe operator

 class SomeClass
 {
     public function run($input)
     {
-        $result = trim(strtolower(htmlspecialchars($input)));
+        $result = $input
+            |> htmlspecialchars(...)
+            |> strtolower(...)
+            |> trim(...);
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Php85\Rector\Expression\NestedFuncCallsToPipeOperatorRector;

return RectorConfig::configure()
    ->withConfiguredRule(NestedFuncCallsToPipeOperatorRector::class, [
        'minimum_depth' => 3,
    ]);