This is simple PHP script to show how to parse the the contents of an XML file and display them. The script uses PHP XML parser to traverse through the xml file and print it’s contents. This extension requires the libxml PHP extension to be enabled.
By default, the script assumes that example.xml file is in the same directory as the script is.
<html>
<head>
<title>Print XML File Data</title>
</head>
<body>
<?
/*
** define functions
*/ function cdataHandler($parser, $data)
{
print($data);
}
function startHandler($parser, $name, $attributes)
{
switch($name)
{
case 'EXAMPLE':
print("<hr />\n");
break;
case 'TITLE':
print("<b>");
break;
case 'CODE':
print("<pre>");
break;
default:
//ignore other tags
}
}
function endHandler($parser, $name)
{
switch($name)
{
case 'EXAMPLE':
print("<hr />\n");
break;
case 'TITLE';
print("</b>");
break;
case 'CODE':
print("");
break;
default:
//ignore other tags
}
}
function piHandler($parser, $target, $data)
{
if($target == "php")
{
eval($data);
}
else
{
print(htmlentities($data));
}
}
function defaultHandler($parser, $data)
{
global $defaultText;
$defaultText .= $data;
}
function ndataHandler($parser, $name, $base, $systemID, $publicID,
$notation)
{
print("\n");
}
function notationHandler($parser, $name, $base, $systemID, $publicID)
{
print("\n");
}
function externalHandler($parser, $name, $base, $systemID, $publicID)
{
//here you could create another parser
print("\n");
return(TRUE);
}
/*
** Initialize
*/
//create parser
if(!($parser = xml_parser_create()))
{
print("Could not create parser!
\n");
exit();
}
//make sure we’re using ISO-8859-1 encoding
if(xml_parser_get_option($parser, XML_OPTION_TARGET_ENCODING) != "ISO-8859-1")
{
xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "ISO-8859-1");
}
//register handlers
xml_set_character_data_handler($parser, "cdataHandler");
xml_set_element_handler($parser, "startHandler", "endHandler");
xml_set_processing_instruction_handler($parser, "piHandler");
xml_set_default_handler($parser, "defaultHandler");
xml_set_unparsed_entity_decl_handler($parser, "ndataHandler");
xml_set_notation_decl_handler($parser, "notationHandler");
xml_set_external_entity_ref_handler($parser, "externalHandler");
/*
** Parse file
*/if(!($fp = fopen("example.xml", "r")))
{
print("Couldn’t open example.xml!
\n");
xml_parser_free($parser);
exit();
}
while($line = fread($fp, 1024))
{
if(!xml_parse($parser, $line, feof($fp)))
{
//Error, so print full info
print("ERROR: " . xml_error_string(xml_get_error_code($parser)) .
" at line " . xml_get_current_line_number($parser) .
", column " . xml_get_current_column_number($parser) .
", byte " . xml_get_current_byte_index($parser) . " \n");
}
}
//destroy parser
xml_parser_free($parser);
print("Text handled by the default handler:\n");
print("" . htmlentities($defaultText) . "\n");
?>
</body>
</html>