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PHP XML Expat

The XML Expat Parser

-- Note --
To: Tove
From: Jani
Heading: Reminder
Message: Don't forget me this weekend!

// contents of external file
<?xml version="1.0" encoding="UTF-8"?>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>

<?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("include/note.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);
?>