Sending a JavaScript array to PHP via POST
19,814
Solution 1
1) $.post('url') - Ajax request is done by $.post()
method and you have given "testing.php"
as url which is invalid.
2) window.location = 'test.php' - This is used for redirecting to specific page and you have redirected to 'test.php'
without any parameter/data. Thats why its showing "Notice: Undefined index: data"
3) Try to understand how ajax works. Follow it -
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);
}}
?>
Solution 2
That's not how POST request works. Read more about Ajax, but for now, that's how you should do it.
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);
?>
Author by
Damien Stewart
Updated on June 27, 2022Comments
-
Damien Stewart almost 2 years
I am trying to send a JavaScript array to a PHP file via POST.
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:
<?php $songData = $_POST['data']; $songData = explode(',', $songData); print_r(array_values($songData)); ?>
when sendData(); directs me to test.php I get:
Notice: Undefined index: data
Why doesn't the data variable have any value when I try to print or use it?