javascript is not sending data through php code

[mimics187]

Hi i have a requirement where i need to execute mysql queries once user will confirm Ok from confirmation box.In my case what ever data i am passing to insert_details.php is not working. one more thing i would like to bring to your notice that i need to send data to different script and navigate it to different page.kindly suggest where is the problem?\[code\] <script type="text/javascript"> var r=confirm("This email address already exits in our database. Do you want to continue?"); if (r==true) { var dataObj = { fname : document.getElementById('fname').value, phone : document.getElementById('phone').value, pemail : document.getElementById('email').value} var xhr = new XMLHttpRequest(); xhr.open("POST","insert_details.php", true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.send(JSON.stringify(dataObj));xhr.onreadystatechange = function() { if (xhr.readyState>3) { window.location = 'http://localhost/myproject/test.php?eid=<?php echo $primary_email; ?>'; }}alert("test"); }else { window.location = 'http://localhost/myproject/registration_request.php' } </script> \[/code\]code in insert_details.php\[code\]$date = "Date:" . date("d/m/Y h:i:s") . "\n"; //to get today's date and time $logfile = "testing"; $fpath ="myproject/"; $filepath = $fpath .$logfile . '-log-' . date('Y-m-d') . '.csv'; //path of error log file $fh1 = fopen($filepath, 'a') or die("can't open file"); //opening the error log file fwrite($fh1, "******************index*******************" . "\n"); fwrite($fh1, $date); $test=json_decode(file_get_contents('php://input'));fwrite($fh1, $test[0]); \[/code\]