例
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>";
?>
XML エレメント構造の例
この最初の例は、あるドキュメント中のstart エレメントの構造をイン デントを付けて表示します。
例1 XML エレメント構造を表示
<?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("XML 入力をオープンできませんでした");
}
while ($data = fread($fp, 4096)) {
if (!xml_parse($xml_parser, $data, feof($fp))) {
die(sprintf("XML エラー: %s が %d 行目で発生しました",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
}
}
xml_parser_free($xml_parser);
?>
add a note
User Contributed NotesXML エレメント構造の例
roan at horning dot us
31-Oct-2009 02:07
31-Oct-2009 02:07