PHPerKaigi 2024

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 = 0;

function
startElement($parser, $name, $attrs)
{
global
$depth;

for (
$i = 0; $i < $depth; $i++) {
echo
" ";
}
echo
"$name\n";
$depth++;
}

function
endElement($parser, $name)
{
global
$depth;
$depth--;
}

$xml_parser = xml_parser_create();
xml_set_element_handler($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);
?>

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User Contributed Notes 3 notes

up
1
Joachim Kruyswijk
1 year ago
If you use strict_types=1, you'll get the warning "Notice: Resource ID#... used as offset, casting to integer".

Use

<?php $depth[(int) $parser] ?>

instead of

<?php $depth[$parser] ?>
up
-8
roan at horning dot us
14 years ago
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 (!(
$inTag == "")) {
echo
"&gt;";
}
echo
"\n$padTag&lt;$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 (
$closeTag == TRUE) {
echo
"&lt/$name&gt;";
$inTag = "";
} elseif (
$inTag == $name) {
echo
" /&gt;";
$inTag = "";
} else {
$padTag = str_repeat(str_pad(" ", 3), $depth);
echo
"\n$padTag&lt/$name&gt;";
}
}

function
contents($parser, $data) {

global
$closeTag;

$data = preg_replace("/^\s+/", "", $data);
$data = preg_replace("/\s+$/", "", $data);

if (!(
$data == "")) {
echo
"&gt;$data";
$closeTag = TRUE;
} else {
$closeTag = FALSE;
}
}

function
parseDEFAULT($parser, $data) {

$data = preg_replace("/</", "&lt;", $data);
$data = preg_replace("/>/", "&gt;", $data);
echo
$data;
}

function
pi_handler($parser, $target, $data) {

echo
"&lt;?$target $data?&gt;\n";
}
echo
"</pre>";
?>
up
-24
Sample at hotmail dot com
10 years ago
<?php

public static function xml2array($element, $arr = array())
{
if(
is_string($element))
{
$element = (strlen($element) > 5 && substr($element, -4) === '.xml')
?
simplexml_load_file(DATAPATH.$element)
:
simplexml_load_string($element);
}
$iter = 0;
foreach(
$element->children() as $b)
{
$a = $b->getName();
if(!
$b->children()){
$arr[$a] = trim($b[0]);
}
else{
$arr[$a][$iter] = array();
$arr[$a][$iter] = self::xml2array($b,$arr[$a][$iter]);
}
$iter++;
}
return
$arr;
}
}

?>
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