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@ 2014-05-23T01:08:05Z

<?php

abstract class HTMLDecorator {

    /** @var \ArrayObject */
    protected $notes;

    public function format(){
        $html = '';

        foreach ($this->getNodes() as $node)
            $html .= "<p>{$node}</p>";

        return $html;
    }
}


class HTML extends HTMLDecorator{

    public function __construct(){
        $this->nodes = new \ArrayObject();
    }

    public function getNodes(){
        return $this->nodes;
    }
}


class BlockHtml extends HTMLDecorator{

    protected $html;

    public function __construct(HTMLDecorator $html){
        $this->html = $html;
    }

    public function getNodes()
    {
        $this->html->getNodes()->append('Block html');
        return $this->html->getNodes();
    }

}


class ImageHtml extends HTMLDecorator{

    protected $html;

    public function __construct(HTMLDecorator $html){
        $this->html = $html;
    }

    public function getNodes()
    {
        $this->html->getNodes()->append('Image html');
        return $this->html->getNodes();
    }

}

$html = new HTML();
$html = new BlockHTML($html);
$html = new ImageHTML($html);
echo $html->format();

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Deprecated: Creation of dynamic property HTML::$nodes is deprecated in /in/REGfp on line 22 <p>Block html</p><p>Image html</p><p>Block html</p>
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28: <p>Block html</p><p>Image html</p><p>Block html</p>
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/REGfp on line 22 <p>Block html</p><p>Image html</p><p>Block html</p>
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_CLASS in /in/REGfp 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: Parse error: parse error, unexpected T_CLASS in /in/REGfp on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/REGfp on line 3
Process exited with code 255.

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