Problem parsing XML output (PHP/JQuery)
I scratch my head in frustration, but I can't find the answer. I'm new to Ajax and I'm trying this easy script:
Here's my code:
JAVASCRIPT:
$(document).ready(function(){
$("#toggle_album").click(function () {
$.post('backend/load_album_thumbnails.php', {
text: 'my string',
number: 23
}, function(xml) {
var timestamp = $(xml).find("time").text();
alert(xml);
alert(timestamp);
});
});
});
the alert(xml) returns:
<? xml version="1.0"?>
<response status="ok">
<time>23:33:13</time>
<string>my string</string>
</response>
the alert(timestamp) returns emp开发者_StackOverflowty
i have also tried:
timestamp = $("time",xml).text();
with the same result.
I added the extra space in the xml start tag because it dissapeared here on stackoverflow. The only reason for this error I can think of is that the return data isn't in XML format, but I can't figure out why that would be the case.
Appreciate any answers.
You're correct, the reason it's not working is that the return data isn't in XML format. Generally, if a web server doesn't return a text/xml
Content-Type header, then certain browsers (and therefore jQuery) won't bother parsing the XML.
To get it to work, your options are:
Modify your response headers to specify XML format using PHP's
header()
function and then, change your response so that it uses well-formed XML. The code to do this would look something like:header('Content-Type: text/xml; charset=UTF-8'); echo "<?xml version=\"1.0\"?> <response status="ok"> <time>$timestamp</time> <string>$mystring</string> </response>";
Change the way you handle the response in your JavaScript code (for example, write a simple regular expression parser, although this is considered bad for your health)
- Change your response to something like JSON so that you can use jQuery's
$.getJSON()
method to send the request and parse the response to a JavaScript object (PHP has some very nice built-in JSON functions).
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