php7 实例演示

<?php
//Initialize the XML parser
$parser = xml_parser_create();

//Function to use at the start of an element
function start($parser, $element_name, $element_attrs)
{
    switch ($element_name) {
        case "NOTE":
            echo "-- Note --<br>";
            break;
        case "TO":
            echo "To: ";
            break;
        case "FROM":
            echo "From: ";
            break;
        case "HEADING":
            echo "Heading: ";
            break;
        case "BODY":
            echo "Message: ";
    }
}

//Function to use at the end of an element
function stop($parser, $element_name)
{
    echo "<br>";
}

//Function to use when finding character data
function char($parser, $data)
{
    echo $data;
}

//Specify element handler
xml_set_element_handler($parser, "start", "stop");

//Specify data handler
xml_set_character_data_handler($parser, "char");

//Open XML file
$fp = fopen("test.xml", "r");

//Read data
while ($data = fread($fp, 4096)) {
    xml_parse($parser, $data, feof($fp)) or
        die(sprintf(
            "XML Error: %s at line %d",
            xml_error_string(xml_get_error_code($parser)),
            xml_get_current_line_number($parser)
        ));
}

//Free the XML parser
xml_parser_free($parser);
?>