pass sessionid through jquery ajax call to php - php

Question

JS in (start.php)
$(document).ready(function()
{
$('#btn_1').click(function(){
$.ajax({
type: "POST",
url: "get_data.php",
data: 'func=getData1',
success: function(msg){
$('#div_1').html(msg);
}
});
$('#div_1').show();
})
});
PHP (somename.php)
<?php
session_start();
if(trim($_POST['func']) == "getData1")
{
echo "Test";
}
?>
How can i pass the sessionid from start.php through my ajax to the get_data.php file ?
And how can pass the complete URL "url: "get_data.php," to the js-File so that i can switch the php-files, that should be called from ajax ?

Answer 1

Store Session ID in javascript variable and send it through ajax call, like this:
var session_id = '<?php echo session_id();?>';
Complete code should be:
var data = {func:'getData1',session_id:session_id};
$('#btn_1').click(function(){
$.ajax({
type: "POST",
url: "get_data.php",
data: data,
success: function(msg){
$('#div_1').html(msg);
}
});
$('#div_1').show();
})
Updates
If you want to access php variable in external js file, define variable before including js file. Like:
<script type="text/javascript">
var session_id = '<?php echo session_id();?>';
</script>
<script src="./ajax.js" type="text/javascript"></script>

Answer 2

$(document).ready(function()
{
$('#btn_1').click(function(){
$.ajax({
type: "POST",
url: "get_data.php",
data: {func:'fuc_name',session:'<?php echo session_id();?>'},
success: function(msg){
$('#div_1').html(msg);
}
});
$('#div_1').show();
})
});

Answer 3

var session_id = '<?php echo session_id();?>';
$('#btn_1').click(function(){
$.ajax({
type: "POST",
url: "get_data.php",
data: {func:"getData1","session":session_id},
success: function(msg){
$('#div_1').html(msg);
}
});
$('#div_1').show();
})
});

Answer 4

Use json encode. By using json you can pass the php data to js. Changing the code as per below. Set session id after session starts.
$(document).ready(function()`{
$('#btn_1').click(function(){ ` $.ajax({ `type: "POST",` dataType:"json", `url: "get_data.php,` data: 'func=getData1'`success: function(msg){ ` $('#div_1').html(msg.id); `}
});
$('#div_1').show();
})
});
in php side echo the variable with json encode.
echo json_encode($id); `

Answer 5

Use json encode. By using json you can pass the php data to js. Changing the code as per below. Set session id after session starts.
$(document).ready(function()
'{
$('#btn_1').click(function(){ `
$.ajax({
type: "POST",`
dataType:"json", `url: "get_data.php,`
data: {func:'enter the data you want to pass'},
success: function(msg){
$('#div_1').html(msg.id);
}
});
$('#div_1').show();
})
});
in php side echo the variable with json encode.
echo json_encode($id); `