MattR Posted October 6, 2009 Share Posted October 6, 2009 This is my form: <body> <script type="text/javascript"> function ajaxFunction() { var xmlhttp; if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else if (window.ActiveXObject) { // code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } else { alert("Your browser does not support XMLHTTP!"); } xmlhttp.onreadystatechange=function() { if(xmlhttp.readyState==4) { document.location.address.value=xmlhttp.responseText; } } xmlhttp.open("GET","postcodes.php",true); xmlhttp.send(null); } </script> <form method="get" name="location" action=""> <input type="text" name="postcode" size="8" maxlength="8" onkeyup="ajaxFunction();" /> <input type="textarea" name="address" value="" rows="5" /> </form> </body> That's pretty much copied from W3Schools. This is the 'postcodes.php' file: if($_GET) { echo "YES"; } else { echo "NO"; } Whatever I type into the 'postcode' form box, the 'address' one says NO. Whatever I put in. I know it's finding the file .php because it's outputting something, but why is it refusing to find the GET request?? Quote Link to comment Share on other sites More sharing options...
kickstart Posted October 6, 2009 Share Posted October 6, 2009 Hi You haven't passed anything to the script so the $_GET array is empty. Try using this line instead:- xmlhttp.open("GET","postcodes.php?postcode="+document.getElementsByName("postcode")[0].value,true); All the best Keith Quote Link to comment Share on other sites More sharing options...
MattR Posted October 6, 2009 Author Share Posted October 6, 2009 Ahh!! Thank you Quote Link to comment Share on other sites More sharing options...
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