Diese Seite bei php.net
The PHP manual text and comments are covered by the Creative Commons Attribution 3.0 License © the PHP Documentation Group - Impressum - mail("TO:Reinhard Neidl",...)
This first example displays the structure of the start elements in a document with indentation.
Beispiel #1 Show XML Element Structure
<?php
$file = "data.xml";
$depth = array();
function startElement($parser, $name, $attrs)
{
global $depth;
for ($i = 0; $i < $depth[$parser]; $i++) {
echo " ";
}
echo "$name\n";
$depth[$parser]++;
}
function endElement($parser, $name)
{
global $depth;
$depth[$parser]--;
}
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
if (!($fp = fopen($file, "r"))) {
die("could not open XML input");
}
while ($data = fread($fp, 4096)) {
if (!xml_parse($xml_parser, $data, feof($fp))) {
die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
}
}
xml_parser_free($xml_parser);
?>
The following example will echo back an xml file using the basic event based parser. Currently, (at least in the version of PHP5 I'm using) it will skip The XML declaration and the Doctype declaration--they don't seem to be captured by the default handler.
<?php
echo "<pre>";
$file = "test.xml";
echo $file."\n";
global $inTag;
$inTag = "";
$xml_parser = xml_parser_create();
xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($xml_parser, XML_OPTION_SKIP_WHITE, 1);
xml_set_processing_instruction_handler($xml_parser, "pi_handler");
xml_set_default_handler($xml_parser, "parseDEFAULT");
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "contents");
if (!($fp = fopen($file, "r"))) {
if (!xml_parse($xml_parser, $data, feof($fp))) {
die( sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
}
}
while ($data = fread($fp, 4096)) {
if (!xml_parse($xml_parser, $data, feof($fp))) {
die( sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
}
}
xml_parser_free($xml_parser);
function startElement($parser, $name, $attrs) {
global $inTag;
global $depth;
$padTag = str_repeat(str_pad(" ", 3), $depth);
if (!($inTag == "")) {
echo ">";
}
echo "\n$padTag<$name";
foreach ($attrs as $key => $value) {
echo "\n$padTag".str_pad(" ", 3);
echo " $key=\"$value\"";
}
$inTag = $name;
$depth++;
}
function endElement($parser, $name) {
global $depth;
global $inTag;
global $closeTag;
$depth--;
if ($closeTag == TRUE) {
echo "</$name>";
$inTag = "";
} elseif ($inTag == $name) {
echo " />";
$inTag = "";
} else {
$padTag = str_repeat(str_pad(" ", 3), $depth);
echo "\n$padTag</$name>";
}
}
function contents($parser, $data) {
global $closeTag;
$data = preg_replace("/^\s+/", "", $data);
$data = preg_replace("/\s+$/", "", $data);
if (!($data == "")) {
echo ">$data";
$closeTag = TRUE;
} else {
$closeTag = FALSE;
}
}
function parseDEFAULT($parser, $data) {
$data = preg_replace("/</", "<", $data);
$data = preg_replace("/>/", ">", $data);
echo $data;
}
function pi_handler($parser, $target, $data) {
echo "<?$target $data?>\n";
}
echo "</pre>";
?>
Diese Seite bei php.net