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php expat方式解析xml

2014-08-23 16:42 232 查看

<?xml version="1.0" encoding="UTF-8"?>
<notes>
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
</note>
<note>
<to>George2</to>
<from>John2</from>
<heading>Reminder2</heading>
<body>Don't forget the meeting!2</body>
</note>
<instances>
<instance st="192.168.234.121" />
<instance st="192.168.234.28" />
</instances>
</notes>

<?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($fp, 10)) {
// xml_parse($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)));
// }
// fclose($fp);

$data = file_get_contents("test.xml");
xml_parse($parser, $data) or die(sprintf("XML Error: %s at line %d", xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser)));
// Free the XML parser
xml_parser_free($parser);

?>

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