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[SOLVED] Problem on compare variable inside if ( variable =="a value" )

immunity

By immunity
in Javascript Help

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immunity Newbie

immunity

Posted
Posted

I try to craft Ajax. I got a  .php file which it gives $sInfo variable  values 0 (if no rows returned ) or 1 (if one or more rows returned)

with javascript i get this echo on var results.

 

I want to create  if (results ==0 ){ give element value ="not exists" }  if(results ==1) {give element value ="exists"}

 

but compiler doesnt go inside one of these 2 if :(

 

I checked without if and element get value = result (display in broswer 0  or 1)  how i can compare results ?

 

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 

<html> 
<head> 
    <title>Customer Account Information</title> 
    <script type="text/javascript"> 
        var url = "GetCustomerData.php?id="; // The server-side script 
       function handleHttpResponse() {    
        if (http.readyState == 4) { 
              if(http.status==200) { 
                  var results=http.responseText; 
		if(results==1)
		{
			results ="exists";
		document.getElementById('divCustomerInfo').innerHTML = results;
		}
		if (results==0)
		{
		 	results ="not exist";
		document.getElementById('divCustomerInfo').innerHTML = results;
		}
              } 
              } 
        } 
        
        function requestCustomerInfo() {      
            var sId = document.getElementById("txtCustomerId").value; 
            http.open("GET", url + escape(sId), true); 
            http.onreadystatechange = handleHttpResponse; 
            http.send(null); 
        } 
function getHTTPObject() { 
  var xmlhttp; 

  if(window.XMLHttpRequest){ 
    xmlhttp = new XMLHttpRequest(); 
  } 
  else if (window.ActiveXObject){ 
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
    if (!xmlhttp){ 
        xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); 
    } 
    
} 
  return xmlhttp; 

  
} 
var http = getHTTPObject(); // We create the HTTP Object 
</script> 
</head> 
<body> 
    <p>Enter customer ID number to retrieve information:</p> 
    <p>Customer ID: <input type="text" id="txtCustomerId" value="" /></p> 
    <p><input type="button" value="Get Customer Info" onclick="requestCustomerInfo()" /></p> 
    <div id="divCustomerInfo"></div> 
</body> 
</html>

nogray Newbie

nogray

Posted
Posted

add an alert(results); before you compare to see what the actuall value of results.

 

Also, results is a string, so your comparisson should be

 

if (results == "1")

 

with quotes around the one

 

finally, you can use

 

if (results == "1") { ... }

else { ... }

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