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@ 2013-08-28T13:52:49Z

<?php

$context = [
    'mes' => [
        'attributes' => [
            't' => 'AddEvent',
            'id' => 'test_id',
        ],
        'ev' => [
            'attributes' => [
                'evt' => 'packet20130828ki3si0',
                'src' => 'NVV',
                'st' => 'test',
                'start' => '12423511247',
                'stop' => '12423991978',
                'addrtype' => 'MB',
                'clntID' => '+380957700418',
                'lg' => '',
                'bank' => '',
                'lang' => '',
                'prior' => '',
                'brnm' => '',
                'extref' => '',
                'intref' => '',
                'extaddrtype' => '',
                'extaddrid' => '',
                'recall' => '',
            ],
            'attr' => [
                [
                    'attributes' => [
                        'code' => '1',
                        'val' => '11',
                    ],
                ],
                [
                    'attributes' => [
                        'code' => '2',
                        'val' => '12',
                    ],
                ],
            ],
            'hist' => [
                [
                    'attributes' => [
                        'st' => '',
                        'ch' => '',
                        'lg' => '',
                        'con' => '',
                        'com' => '',
                        'addrtype' => '',
                        'addrid' => '',
                        'dt' => '',
                        'contactId' => '',
                    ],
                ],
            ],
        ],
    ],
];

class Conv
{
	protected $res;
	protected $context;

    public  function __construct(array $context)
    {
        if (count($context) != 1) {
			throw new Exception('Must be only one root element', 500);
        }
		$this->context = $context;
        $this->init(key($this->context));
    }

	public function conv() {
		return $this->a2x(current($this->context), $this->res)->asXML();
	}

	protected function init($root) {
		$this->res = new SimpleXMLElement("<{$root}/>");
	}

    protected function a2x(array $inner, SimpleXMLElement $node)
    {
		foreach ($inner as $key => $value) {
			if ($key == 'attributes') {
                if (count($value)) {
					foreach ($value as $attrKey => $attrVal) {
                        //var_dump($attrKey, $attrVal);exit;
                        $node->addAttribute($attrKey, is_string($attrVal)?$attrVal:'test');
                    }
				}
            } else {
				$subNode = $node->addChild($key);
                $this->a2x($value, $subNode);
            }
        }
        return $this->res;
    }
}


$a2x = new Conv($context);
echo $a2x->conv()->asXML();

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to a member function asXML() on string in /in/ADqCT:105 Stack trace: #0 {main} thrown in /in/ADqCT on line 105
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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