Question

我正在尝试使用Ajax将脚本中的数据发送到PHP脚本。我有这个错误：注意：未定义的索引：背景。谢谢你的帮助。

ajax.php :

<?php
        $mavariable2=$_POST['background'];
        echo $mavariable2;
    ?>

script.js : 

function open_script(){
     // Create our XMLHttpRequest object
    var hr = new XMLHttpRequest();
    // Create some variables we need to send to our PHP file
    var url = "ajax.php";
    var back = "blue" ;
    var backgroundf = "&background="+back;
    hr.open("POST", url, true);
    // Set content type header information for sending url encoded variables in the request
    hr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    // Access the onreadystatechange event for the XMLHttpRequest object
    hr.onreadystatechange = function() {
        if(hr.readyState == 4 && hr.status == 200) {
            var return_data = hr.responseText;
        }
    }
    // Send the data to PHP now... and wait for response to update the status div
    hr.send(backgroundf); // Actually execute the request
    //window.location.assign('ajax.php');
}

Answer 1

如果您已在项目中使用jQuery作为依赖项，请尝试使用$.ajax()。

var request = $.ajax({
  url: "script.php",
  method: "POST",
  data: { background : 'blue' },
  dataType: "html"
});

request.done(function( msg ) {
  $( "#log" ).html( msg );
});

更多信息：http://api.jquery.com/jquery.ajax/

传输数据脚本Ajax和脚本PHP

1 个答案: