PHP DOMXpath 클래스

1 개요

PHP DOMXpath 클래스

2 예시: XML

xml 접근 예시

<?php
$xml = '<?xml version="1.0"?>
<moldb>
  <molecule>
    <name>Alanine</name>
    <symbol>ala</symbol>
    <code>A</code>
    <type>hydrophobic</type>
  </molecule>
  <molecule>
    <name>Lysine</name>
    <symbol>lys</symbol>
    <code>K</code>
    <type>charged</type>
  </molecule>
</moldb>';

$doc = new DOMDocument();
$doc->loadXML( $xml );

$xpath = new DOMXpath($doc);
$elements = $xpath->query("/moldb/molecule/symbol");
foreach( $elements as $element ) {
	echo $element->nodeValue.PHP_EOL;
}
# ala
# lys

3 예시: HTML

<?php
$html = "
<html>
<head>
<title>Welcome to zetawiki</title>
</head>
<body>
<p>My name is John</p>
</body>
</html>";

$dom = new DOMDocument;
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$html_p = $xpath->query("//p");

for ($i = 0; $i < $html_p->length; $i++) {
    echo $html_p->item(0)->nodeValue;
}
?>
#My name is John

4 같이 보기

PHP DOMDocument 클래스

5 참고 자료

http://php.net/manual/kr/class.domxpath.php