[英]Sending a JavaScript array to PHP via POST
I am trying to send a JavaScript array to a PHP file via POST. 我试图通过POST将JavaScript数组发送到PHP文件。
JS: JS:
var songlist = ['song1', 'song2', 'song3'];
var sendData = function(){
var data = songList.join(',')
$.post('test.php', {data: data}).always(function() {
window.location = 'test.php';
});
}
sendData();
test.php: test.php的:
<?php
$songData = $_POST['data'];
$songData = explode(',', $songData);
print_r(array_values($songData));
?>
when sendData(); 当sendData(); directs me to test.php I get:
指导我test.php我得到:
Notice: Undefined index: data
注意:未定义的索引:数据
Why doesn't the data variable have any value when I try to print or use it? 当我尝试打印或使用它时,为什么数据变量没有任何值?
That's not how POST request works. 这不是POST请求的工作原理。 Read more about Ajax, but for now, that's how you should do it.
阅读有关Ajax的更多信息,但就目前而言,您应该如何做到这一点。
var songlist = ['song1', 'song2', 'song3']; var sendData = function() { $.post('test.php', { data: songlist }, function(response) { console.log(response); }); } sendData();
// test.php <?php $songData = $_POST['data']; print_r($songData); ?>
1) $.post('url') - Ajax request is done by $.post()
method and you have given "testing.php"
as url which is invalid. 1)$ .post('url') - Ajax请求是通过
$.post()
方法完成的,你已经将"testing.php"
作为url给出了无效的。
2) window.location = 'test.php' - This is used for redirecting to specific page and you have redirected to 'test.php'
without any parameter/data. 2)window.location ='test.php' - 这用于重定向到特定页面,您已经重定向到
'test.php'
而没有任何参数/数据。 Thats why its showing "Notice: Undefined index: data" 这就是为什么它显示“通知:未定义的索引:数据”
3) Try to understand how ajax works. 3)尝试了解ajax的工作原理。 Follow it -
跟着它 -
var songlist = ['song1', 'song2', 'song3'];
var sendData = function() {
$.post('test.php', {
data: songlist
}, function(response) {
console.log(response);
});
}
sendData();
// test.php
<?php
if(isset($_POST)){
if(isset($_POST['data'])){
$songData = $_POST['data'];
print_r($songData);
}}
?>
var songlist = ['song1', 'song2', 'song3'];
var sendData = function(){
var data = songList.join(',')
$.post('testing.php', {data: data}).always(function() {
window.location = "test.php?data=$data";
});
}
sendData();
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