PHP的未定义索引

时间:2013-03-01 19:14:05

标签: php javascript ajax calendar

亲爱的人我正在使用AJAX和PHP

执行日历功能
$showmonth = $_POST['showmonth'];
$showyear = $_POST['showyear'];
$pre_days = date ('w', mktime(0,0,0, $showmonth, 1, $showyear));
$post_days = (6 - (date('w', mktime(0, 0, 0, $showmonth, $day_count, $showyear))));

我不断收到错误消息:

  

注意:未定义的索引:第2行的C:\ xampp \ htdocs \ calendar_start.php中的showmonth

     

注意:未定义的索引:第3行的C:\ xampp \ htdocs \ calendar_start.php中的showyear

     

警告:cal_days_in_month()期望参数2为long,第8行的C:\ xampp \ htdocs \ calendar_start.php中给出字符串

     

警告:mktime()期望参数4为long,第9行的C:\ xampp \ htdocs \ calendar_start.php中给出字符串

     

警告:mktime()期望参数4为long,第10行的C:\ xampp \ htdocs \ calendar_start.php中给出字符串

我认为这与我的AJAX java脚本有关,但我不知道AJAX代码还有哪些部分,但我认为这是困扰我的部分

function next_month() {
    var nextmonth = showmonth + 1;
    if(nextmonth >12) {
        nextmonth = 1;
        showyear = showyear + 1;
        }
showmonth = nextmonth;
var hr = new XMLHttpRequest();
var url = "calendar_start.php";
var vars = "showmonth="+showmonth+"&showyear="+showyear;
hr.open("POST",url,true);
hr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
hr.onreadystatechange = function() {
    if(hr.readyState == 4 && hr.status == 200) {
        var return_data = hr.responseText;
        document.getElementById("showCalendar").innerHML = return_data;
        }
}
    hr.send(vars);
    document.getElementById("showCalendar").innerHTML = "processing...";
}
</script>

这也许也是问题所在:

function initialCalendar() {
var hr = new XMLHttpRequest();
var url = "calendar_start.php";
var currentTime = new Date();
var month = currentTime.getMonth() + 1;
var year = currentTime.getFullYear();
showmonth = month;
showyear = year;
var vars = "showmonth="+showmonth+"&showyear="+showyear;
hr.open("POST", url, true);
hr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
hr.onreadystatechange = function() {
    if(hr.readyState == 4 && hr.status == 200) {
        var return_data = hr.responseText;
        document.getElementById("showCalendar").innerHML = return_data;
        }
}
    hr.send(vars);
    document.getElementById("showCalendar").innerHTML = "processing...";
}

3 个答案:

答案 0 :(得分:2)

花了我5个小时后,我发现了这个: http://www.openjs.com/articles/ajax_xmlhttp_using_post.php

在这里你可以发现你只需要2行:

hr.setRequestHeader("Content-length", vars.length);
hr.setRequestHeader("Connection", "close");

答案 1 :(得分:1)

如果你在javascript中更改了这个???

var url = "calendar_start.php";
var vars = "showmonth="+showmonth+"&showyear="+showyear;
var final_url = url+"?"+vars;
alert(final_url); //this line should a message with the url, post it please.
hr.open("GET",final,true);

这应该有效。

PS:你通过get params传递你的url所以在你的php文件中你应该像

那样收到它们
$showmonth = $_GET['showmonth']; //I change POST by GET
$showyear = $_GET['showyear']; //DONT forget to chenge this in your php file

Saludos;)

答案 2 :(得分:1)

您是否使用相同的方法(POST / GET)发送和接收参数......? 如果不是这样..可能会给出未定义的索引错误... 即如果您使用GET发送参数并使用POST接收参数,反之亦然..