Online PHP editor | rfc for bCOfZ

@ 2014-01-29T00:55:17Z

<?php

/**
 * Update manifest generator for Chrome
 *
 * @category [cv-pls]
 * @package  Chrome
 * @author   Chris Wright <info@daverandom.com>
 */
class ChromeUpdateManifestGenerator
{
    /**
     * @var string Namespace URL for manifest XML
     */
    private $nsUrl = 'http://www.google.com/update2/response';

    /**
     * Create a new node, append it to the specified parent and add attributes
     *
     * @param \DOMNode $parent
     * @param string   $tagName
     * @param array    $attributes
     * @return \DOMElement
     */
    private function appendNode(\DOMNode $parent, $tagName, array $attributes = [])
    {
        $newNode = ($parent->ownerDocument ?: $parent)->createElementNS($this->nsUrl, $tagName);

        foreach ($attributes as $name => $value) {
            $newNode->setAttribute($name, $value);
        }

        $parent->appendChild($newNode);
    }

    /**
     * Generate the update manifest document
     *
     * @param string $appId
     * @param string $version
     * @param string $packageUrl
     * @return \DOMDocument
     */
    public function generate($appId, $version, $packageUrl)
    {
        $document = new \DOMDocument('1.0', 'utf-8');
        $document->formatOutput = true;

        $rootEl = $this->appendNode($document, 'gupdate', ['protocol' => '2.0']);
        $appEl = $this->appendNode($rootEl, 'app', ['appid' => $appId]);
        $this->appendNode($appEl, 'updatecheck', ['codebase' => $packageUrl, 'version' => $version]);

        return $document;
    }
}


$obj = new ChromeUpdateManifestGenerator;
echo $obj->generate('abcdef', '1.2.3.4', 'http://foo.com/')->saveXML();

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught TypeError: ChromeUpdateManifestGenerator::appendNode(): Argument #1 ($parent) must be of type DOMNode, null given, called in /in/bCOfZ on line 50 and defined in /in/bCOfZ:25 Stack trace: #0 /in/bCOfZ(50): ChromeUpdateManifestGenerator->appendNode(NULL, 'app', Array) #1 /in/bCOfZ(59): ChromeUpdateManifestGenerator->generate('abcdef', '1.2.3.4', 'http://foo.com/') #2 {main} thrown in /in/bCOfZ on line 25
Process exited with code 255.

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