我有一个PHP函数来创建DOMDocument XML文件,我需要将DOMDocument转换为Javascript,我已经考虑过使用
PHP中的函数返回DOMDocument,这是PHP函数
function coursexml($cc, $type){
$xmlfile = new DOMDocument();
if (@$xmlfile->load("books.xml") === false || $cc == "" || $type == "") {
header('location:/assignment/errors/500');
exit;
}
$string = "";
$xpath = new DOMXPath($xmlfile);
$nodes = $xpath->query("/bookcollection/items/item[courses/course='$cc']");
$x = 0;
foreach( $nodes as $n ) {
$id[$x] = $n->getAttribute("id");
$titles = $n->getElementsByTagName( "title" );
$title[$x] = $titles->item(0)->nodeValue;
$title[$x] = str_replace(" /", "", $title[$x]);
$title[$x] = str_replace(".", "", $title[$x]);
$isbns = $n->getElementsByTagName( "isbn" );
$isbn[$x] = $isbns->item(0)->nodeValue;
$bcs = $n->getElementsByTagName( "borrowedcount" );
$borrowedcount[$x] = $bcs->item(0)->nodeValue;
if ($string != "") $string = $string . ", ";
$string = $string . $x . "=>" . $borrowedcount[$x];
$x++;
}
if ($x == 0) header('location:/assignment/errors/501');
$my_array = eval("return array({$string});");
asort($my_array);
$coursexml = new DOMDocument('1.0', 'utf-8');
$coursexml->formatOutput = true;
$node = $coursexml->createElement('result');
$coursexml->appendChild($node);
$root = $coursexml->getElementsByTagName("result");
foreach ($root as $r) {
$node = $coursexml->createElement('course', "$cc");
$r->appendChild($node);
$node = $coursexml->createElement('books');
$r->appendChild($node);
$books = $coursexml->getElementsByTagName("books");
foreach ($books as $b) {
foreach ($my_array as $counter => $bc) {
$bnode = $coursexml->createElement('book');
$bnode = $b->appendChild($bnode);
$bnode->setAttribute('id', "$id[$counter]");
$bnode->setAttribute('title', "$title[$counter]");
$bnode->setAttribute('isbn', "$isbn[$counter]");
$bnode->setAttribute('borrowedcount', "$borrowedcount[$counter]");
}
}
}
return $coursexml;
}
所以我想做的是调用Javascript中的函数,并返回DOMDocument。
尝试以下
<?php include('coursexml.php'); ?>
<script>
var xml = <?php $xml = coursexml("CC140", "xmlfile");
echo json_encode($xml->saveXML()); ?>;
document.write("output" + xml);
var xmlDoc = (new DOMParser()).parseFromString(xml, 'text/xml');
</script>
您可以简单地将此函数放在URL中(例如,将其放在独立文件中?这取决于您(,并通过AJAX从客户端调用它。有关进行此类调用的详细信息,请参阅如何在没有jQuery的情况下进行AJAX调用。
编辑:尝试创建一个简单的PHP文件,其中包含并调用您所拥有的函数。从你目前描述的情况来看,它可能看起来像
<?php
include("functions.php");
print coursexml($cc, $type);
假设这个文件名为xml.php,当您通过中的浏览器访问它时http://mydomain.com/xml.php您应该看到XML文档(到目前为止还没有与Javascript相关的内容(。
现在,在您的主文档中,您将包含一段Javascript,它将调用该URL来加载XML。一个例子是(假设您使用的是jQuery,对于一个简单的Javascript函数,请参考上面的链接(:
$.ajax({
url: "xml.php",
success: function(data){
// Data will contain you XML and can be used in Javascript here
}
});