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
 
 explode(',',
-(string) $getInstance->get()
+(string) (string) $getInstance->get()
 	? $_SERVER['REMOTE_ADDR']
 	: $_SERVER['HTTP_X_FORWARDED_FOR'] ?? '',
 );

PHP snippet to change

<?php

explode(',',
(string) $getInstance->get()
	? $_SERVER['REMOTE_ADDR']
	: $_SERVER['HTTP_X_FORWARDED_FOR'] ?? '',
);

Applied Rules:

NullToStrictStringFuncCallArgRector

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\TypeDeclaration\Rector\Property\TypedPropertyFromAssignsRector;
use Rector\ValueObject\PhpVersion;

return RectorConfig::configure()

    ->withRules([
        \Rector\Php81\Rector\FuncCall\NullToStrictStringFuncCallArgRector::class
    ])
    // demonstrate specific PHP version
    ->withPhpVersion(PhpVersion::PHP_84);

Rector version: 227e4a - released at 2025-12-13 13:11