Hi,
Try these:
Method 1: to do it dynamically, use AJAX to get some information from the
server, for example, a $_SESSION var, or some new SVG geometry. Here is
an example from my working code (much of which is borrowed from other folks)
which returns both text and a node (using the same data):
//This is the php document we will call to get a response
var url = ROOT_PATH + "/AJAX_php_handlers/AJAX_add_item.php?item_id=" +
connect_item_id + "&invisible=0&connect_instance=" + instance_id +
"&connect_vector=" + vector_id;
connect_item_getData(url);
function connect_item_getData(url)
{
//call getURL() if available, case ASV3, ASV6 and Batik
if (window.getURL)
{
getURL(url,connect_item_getURLCallback);
}
//call XMLHttpRequest() if available, case MozillaSVG
else if (window.XMLHttpRequest)
{
//this nested function is used to make XMLHttpRequest threadsafe
//(subsequent calls would not override the state of the request and
can use the variable/object context of the parent function)
//this idea is borrowed from
http://www.xml.com/cs/user/view/cs_msg/2815 (brockweaver)
function XMLHttpRequestCallback()
{
//in this example we are only interested in the complete
transaction (readyState 4)
if (xmlRequest.readyState == 4)
{
if (xmlRequest.status == 200)
{
var importedNode = document.importNode(
xmlRequest.responseXML.documentElement,true);
var response = xmlRequest.responseText;
var str_response = new String(response);
connect_item_addGeom(importedNode,str_response);
}
}
}
var xmlRequest = null;
xmlRequest = new XMLHttpRequest();
xmlRequest.open("GET",url,true);
xmlRequest.onreadystatechange = XMLHttpRequestCallback;
xmlRequest.send(null);
}
//write an error message if either method is not available
else
{
alert("your browser/svg viewer neither supports window.getURL nor
window.XMLHttpRequest!");
}
};
function connect_item_getURLCallback(data)
{
//alert("in callback " + data.success + " type " + data.contentType" + "
content " data.content);
//check if data has a success property
if (data.success)
{
var node = parseXML(data.content, document);
var response = data.content;
var str_response = new String(response);
connect_item_addGeom(node,str_response);
}
else
{
alert("Something went wrong with dynamic loading of geometry!");
}
};
function connect_item_addGeom(node,str_response)
{
// append the new child node (item)
returnValue = document.documentElement.appendChild(node);
//Or, you can do something with str_response
};
The php file includes some processing, and, eventually, something like this:
//Indicate the content type of the returned data (this does not end up
in the data field of the returned info)
header('Content-Type: text/xml');
//and we're making svg (required for this to work in FireFox)
echo '<g xmlns="http://www.w3.org/2000/svg";>'."\n";
echo $new_XML_data;
//end of xmlns group
echo "</g>\n";
If you do not need XML data, you could use header('Content-Type:
text/html'); and just echo whatever you want to return.
Method 2: to do it before the SVG is served, save the svg file with
extension .php. At the top, include <? header("Content-type:
image/svg+xml"); ?> Then you can do php processing in the svg file before
it is served. Including, for example onload="set_values(<? echo $a . ',' .
$b; ?>)"
Method 3: to do it before the SVG is served, hide your info in some
invisible geometry. For example make rectangle of id="read_me" with point
coordinate values equal to your data and opacity 0. Then use the DOM to get
the info back again.
That's all I can think of.
Stephen
On 5/20/07, abdelhediiahmed <[EMAIL PROTECTED]> wrote:
>
> i wish to ask if it is possible to copy the value of a variable in a
> php script in a variable of an ecma script .
> if yes how to do it?
>
>
>
[Non-text portions of this message have been removed]
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