thtroyer / noaa-cap-alerts

src/NoaaCapAlerts/Parser/XmlParser.php

<?php

namespace NoaaCapAlerts\Parser;

use NoaaCapAlerts\Exceptions\XmlParseException;

class XmlParser
{

    protected array $output;

    public function __construct()
    {
        $this->output = array();
    }

    /**
     * @throws XmlParseException
     */
    public function getArrayFromXml($xml): array
    {
        $xmlParser = xml_parser_create();
        xml_set_object($xmlParser, $this);
        xml_set_element_handler($xmlParser, "tagOpen", "tagClosed");
        xml_set_character_data_handler($xmlParser, "tagData");

        $successfulParse = xml_parse($xmlParser, $xml, true);

        if ($successfulParse === 0) {
            $errorString = xml_error_string(xml_get_error_code($xmlParser));
            $errorLine = xml_get_current_line_number($xmlParser);

            throw new XmlParseException("Error parsing XML: {$errorString} at line {$errorLine}.");
        }

        xml_parser_free($xmlParser);

        return $this->output;
    }

    protected function tagOpen($parser, $name, $attrs)

The parameter $parser is not used and could be removed.

    {
        $tag = array(
            "name" => $name,
            "attrs" => $attrs
        );

        $this->output[] = $tag;
    }

    protected function tagClosed($parser, $name)

The parameter $name is not used and could be removed.

The parameter $parser is not used and could be removed.

    {
        $this->output[count($this->output) - 2]['children'][] = $this->output[count($this->output) - 1];

        array_pop($this->output);
    }

    protected function tagData($parser, $tagData)

The parameter $parser is not used and could be removed.

    {
        $notWhitespace = !empty(trim($tagData));

        if ($notWhitespace) {
            $this->output[count($this->output) - 1]['tagData'] = $tagData;
        }
    }
}