Try Rector Online | Rector - Automated Way to Instantly Upgrade and Refactor any PHP code

Run Rector on your code to see what it can do for you:

 <?php
 
 $arr = [

 ];
 $checkDate = new DateTimeImmutable("2025-03-20 00:00:00");
 $foundDate = array_shift($arr);
-while ($foundDate < $checkDate && ($foundDate = array_shift($arr)) !== null);
 
-var_dump($foundDate);
+var_dump($foundDate);

PHP snippet to change

<?php

$arr = [
    new DateTimeImmutable("2025-03-10 00:00:00"),
    new DateTimeImmutable("2025-03-14 00:00:00"),
    new DateTimeImmutable("2025-03-18 00:00:00"),
    new DateTimeImmutable("2025-03-22 00:00:00"),
    new DateTimeImmutable("2025-03-26 00:00:00"),
    new DateTimeImmutable("2025-03-30 00:00:00"),
];
$checkDate = new DateTimeImmutable("2025-03-20 00:00:00");
$foundDate = array_shift($arr);
while ($foundDate < $checkDate && ($foundDate = array_shift($arr)) !== null);

var_dump($foundDate);

Applied Rules:

RemoveDeadLoopRector

Not a change you expect?

Create an issue on GitHub
...or to speed up fix – add a test fixture

Config rector.php

<?php

use Rector\Config\RectorConfig;
use Rector\DeadCode\Rector\For_\RemoveDeadLoopRector;

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

Rector version: e61473 - released at 2025-09-10 00:40