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@ 2013-08-28T13:53:23Z

<?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);
var_dump($a2x->conv()); //->asXML();

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(436) "<?xml version="1.0"?> <mes t="AddEvent" id="test_id"><ev 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><0 code="1" val="11"/><1 code="2" val="12"/></attr><hist><0 st="" ch="" lg="" con="" com="" addrtype="" addrid="" dt="" contactId=""/></hist></ev></mes> "
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: string(367) "<?xml version="1.0"?> <mes t="AddEvent" id="test_id"><ev 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="test"><1 code="2" val="12"/></attr><hist attributes="test"/></ev></mes> "
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/dZVHb on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/dZVHb on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/dZVHb on line 3
Process exited with code 255.

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