[SOLVED] Cant retrive $_POST vars after AJAX POST

[nadeemshafi9]

Hi guys im trying to retrive my poisted vars from my form, im trying to read them in the page i post them to via AJAX but they are empty, the system works it goes throgh to the page and echos things but teh POST vars are empty.

 

here is the JS

 

function post_admin_form(id, adminpage) {

params = "id=" + id + "&action=update";

if(adminpage == "indexpages") http.open("post", "common/AJAX/indexpages.php?id=" + id + "&action=update", true); 

//Send the proper header information along with the request
http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
http.setRequestHeader("Content-length", params.length);
http.setRequestHeader("Connection", "close");

http.onreadystatechange = function () { 
	if(http.readyState == 4 && http.status == 200){ 
		var response = http.responseText;
		if(response) { 
			if(adminpage == "indexpages") document.getElementById("maincontentarea").innerHTML = response;
		}
	}
}
http.send(params);
}

[aseaofflames]

you haven't initilized the ajax variable:

 

var http;  // The variable that makes Ajax possible!

try{
	// Opera 8.0+, Firefox, Safari
	http = new XMLHttpRequest();
} catch (e){
	// Internet Explorer Browsers
	try{
		http = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try{
			http = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e){
			// Something went wrong
			alert("Your browser broke!");
			return false;
		}
	}

[nadeemshafi9]

i have initialised it but thanks m8 i have solved this problem now,

 

in order for you to recive them as your $_post vars you need the following MIME

 

http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");

 

you have to make all your form data into a string and send it in the http.send(params);

 

function getFormValues(fobj,valFunc)
{
var str = "";
var valueArr = null;
var val = "";
var cmd = "";

for(var i = 0;i < fobj.elements.length;i++)
{
	//alert(fobj.elements[i].type);

	switch(fobj.elements[i].type)
	{
		case "text":
			if(valFunc)
			{
				//use single quotes for argument so that the value of
				//fobj.elements[i].value is treated as a string not a literal
				cmd = valFunc + "(" + 'fobj.elements[i].value' + ")";
				val = eval(cmd)
			}
			str += fobj.elements[i].name + "=" + escape(fobj.elements[i].value) + "&";
		break;
		case "textarea":
			if(valFunc)
			{
				cmd = valFunc + "(" + 'fobj.elements[i].value' + ")";
				val = eval(cmd)
			}
			str += fobj.elements[i].name + "=" + escape(fobj.elements[i].value) + "&";
		break;
		case "hidden":
			if(valFunc)
			{
				cmd = valFunc + "(" + 'fobj.elements[i].value' + ")";
				val = eval(cmd)
			}
			str += fobj.elements[i].name + "=" + escape(fobj.elements[i].value) + "&";
		break;
		case "button":
			if(valFunc)
			{
				cmd = valFunc + "(" + 'fobj.elements[i].value' + ")";
				val = eval(cmd)
			}
			str += fobj.elements[i].name + "=" + escape(fobj.elements[i].value) + "&";
		break;
		case "file":
			if(valFunc)
			{
				cmd = valFunc + "(" + 'fobj.elements[i].value' + ")";
				val = eval(cmd)
			}
			str += fobj.elements[i].name + "=" + escape(fobj.elements[i].value) + "&";
			str += fobj.elements[i].name + "_size=" + escape(fobj.elements[i].size) + "&";
		break;
		case "checkbox":
			str += fobj.elements[i].name + "=" + escape(fobj.elements[i].checked) + "&";
		break;
		case "select-one":
			str += fobj.elements[i].name + "=" + fobj.elements[i].options[fobj.elements[i].selectedIndex].value + "&";
		break;
	}
}
str = str.substr(0,(str.length - 1));
return str;
}