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

Rector run Failed:

{ "totals": { "changed_files": 0, "errors": 1 }, "errors": [ { "message": "System error: \"Scope not available on \"PhpParser\\Node\\ArrayItem\" node. Fix scope refresh on changed nodes first\"\nRun Rector with \"--debug\" option and post the report here: https://github.com/rectorphp/rector/issues/new", "file": "/var/www/storage/demo/tmgvzx7qftorrenyf9m8/rector_analyzed_file.php", "line": 19 } ] }

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

PHP snippet to change

<?php

$regex = '/(?P<version>\d+\.\d+\.\d+)/';
$contents = 'VERSION: 1.0.0';
$operations = [];

if (preg_match_all($regex, $contents, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER) > 0) {
    foreach ($matches as ['version' => [$fullVersion, $offset]]) {
        $operations[] = [$fullVersion, $offset];
    }
}

Config rector.php

<?php

use Rector\Config\RectorConfig;
use Rector\PHPUnit\CodeQuality\Rector\CallLike\DirectInstanceOverMockArgRector;
use Rector\ValueObject\PhpVersion;

return RectorConfig::configure()
    ->withPreparedSets(codeQuality: true)
    ->withRules([
		DirectInstanceOverMockArgRector::class,
    ])
    ->withPhpVersion(PhpVersion::PHP_84);

Rector version: 5ce62c - released at 2026-02-03 19:00