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# Example

Example -- Example for the usage of XML_Statistics

## Usage example

The following examples shows how XML_Statistics can be used to analyze a document.

Example 59-1. Basic example
    require_once "XML/Statistics.php";
    $stat = new XML_Statistics(array("ignoreWhitespace" => true));
    $result = $stat->analyzeFile("example.xml");

    if ($stat->isError($result)) {
        die("Error: " . $result->getMessage());
    }

    // total amount of tags:
    echo "Total tags: " . $stat->countTag() . "<br />";

    // count amount of 'title' attribute, in all tags
    echo "Occurences of attribute title: " . $stat->countAttribute("title") . "<br />";

    // count amount of 'title' attribute, only in <section> tags
    echo "Occurences of attribute title in tag section: " . $stat->countAttribute("title", "section") . "<br />";

    // count total number of tags in depth 4
    echo "Amount of Tags in depth 4: " . $stat->countTagsInDepth(4) . "<br />";

    echo "Occurences of PHP Blocks: " . $stat->countPI("PHP") . "<br />";

    echo "Occurences of external entity 'bar': " . $stat->countExternalEntity("bar") . "<br />";

    echo "Data chunks: " . $stat->countDataChunks() . "<br />";

    echo "Length of all data chunks: " . $stat->getCDataLength() . "<br />";

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