I would like to send data from javascript to php but this "Undefined array key "token" in C:\xampp\htdocs\TPO\registered.php on line 2" is trigger in my php file.
JavaScript function
function doSomething(Acronym) {
$.post('registered.php', {token: "Hello"});
console.log($(Acronym).data('id'))
}
registered.php
<?php
$variable = $_POST['token'];
echo($variable);
?>
You can use jQuery Ajax for posting data to the PHP files by javascript.
This can be your js file:
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" ></script>
<script>
var vars = {
'token': 'Hello',
};
var userStr = JSON.stringify(vars);
$.ajax({
url: 'registered.php',
type: 'post',
data: { vars: userStr },
success: function (response) {
console.log(response);
}
});
</script>
And this is your PHP file:
<?PHP
$vars = $_POST['vars'];
$variable = json_decode($vars, true);
echo($variable);
?>