Salve...
Ho fatto un esempio preso da un libro.... quando carico il file hml...ho il seguente errore:
"errore durante la lettura della risposta: Type error 'xmlresponse' non è definito. "
file html
file phptest.jscodice:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11.dtd"> <html> <head> <title>AJAX in pratica: Usare php dom </title> <script type="text/javascript" src= "phptest.js"></script> </head> <body onload= "process()"> Il libro su AJAX del 2006 è: <div id="myDivElement"/> </body> </html>
file phpcodice:var xmlHttp = createXmlHttpRequestObject(); function createXmlHttpRequestObject() { var xmlHttp; try { xmlHttp = new XMLHttpRequest(); } catch (e) { var XmlHttpVersions = new array ("MSXML2.XMLHTTP.6.0", "MSXML2.XMLHTTP.5.0", "MSXML2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"); for (var i=0; i<XmlHttpVersions.length && !xmlHttp;i++) { try { xmlHttp = new ActiveXObject(XmlHttpVersions[i]); } catch(e){} } } if (!xmlHttp) alert("Errore durante la creazione dell'oggetto XMLHttpRequest."); else return xmlHttp; } function process() { if (xmlHttp) { try { xmlHttp.open("GET", "phptest.php",true); xmlHttp.onreadystatechange =handleRequestStateChange; xmlHttp.send(null); } catch (e) { alert("impossibile collegarsi al server:\n" + e.toString()); } } } function handleRequestStateChange() { if(xmlHttp.readyState == 4) { if (xmlHttp.status == 200) { try { handleServerResponse(); } catch(e) { alert("errore durante la lettura della risposta:" + e.toString()); } } else { alert("C e stato un problema nella ricezione dei dati:\n"+xmlHttp.statusText); } } } function handleServerResponse() { var xmlResponse = xmlHttp.responseXML; if (!xmlResponse || !xmlresponse.documentElement) throw("Struttura XML non valida:\n" + xmlHttp.responseText); var rootNodeName = xmlResponse.documentElement.nodeName; if(rootNodeName=="parsererror") throw("Struttura XML non valida"); xmlRoot =xmlResponse.documentElement; titleArray = xmlRoot.getElementsByTagName("title"); isbnArray = xmlRoot.getElementsByTagName("isbn"); var html =""; for (var i=0; i<titleArray.length;i++) html += titleArray.item(i).firstChild.data + ", "+ isbnArray.item(i).firstChild.data + " "; myDiv = document.getElementById("myDivElement"); myDiv.innerHTML= html; }
codice:<?php header("Content-type: text/xml"); $dom= new DOMDocument(); $response =$dom->createElement('response'); $dom->appendChild($response); $books = $dom->createElement('books'); $response->appendChild($books); $title = $dom->createElement('title'); $titleText =$dom->createTextNode('Building Responsive Web Application with AJAX and PHP'); $title->appendChild($titleText); $isbn=$dom->createElement('isbn'); $isbnText = $dom->createTextNode('1-904811-82-5'); $isbn->appendChild($isbnText); $book= $dom->createElement('book'); $book->appendChild($title); $book->appendChild($isbn); $books->appendChild($book); $xmlString=$dom->saveXML(); echo $xmlString; ?>
Rispondi quotando