<?php

use Symfony\Component\Yaml\Dumper;

$array = ['foo' => 
    [
        'bar' => ['1a','2b','4d','8z'],
        'baz' => 'value',
    ]];

$yml = new Dumper();
echo '<pre>' . $yml->dump($array, 2, 4) . '</pre>';

// or you can use static 
// Symfony\Component\Yaml\Yaml::dump

    foo:
        bar: [1a, 2b, 4d, 8z]
        baz: value

• Adding Symfony bundle configuration without a config file using ClosureLoader
• Symfony RequestDataCollector for collecting request and response data
• Symfony Config XML utils - convert DOMElement to array

PHP 8.2, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8