Ajax POST to Cakephp Controller always give array() result - php

Question

i really struggle to get the POST value in the controller .i am really new to this..Please someone share me some light..being in the dark for long hours now.
i had a checkboxes and need to pass all the ids that had been checked to the controller and use that ids to update my database.i don't know what did i did wrong, tried everything and some examples too like here:
sending data via ajax in Cakephp
found some question about same problem too , but not much helping me( or maybe too dumb to understand) . i keep getting array();
please help me..with my codes or any link i can refer to .here my codes:
my view script :
<script type="text/javascript">
$(document).ready(function(){
$('.checkall:button').toggle(function(){
$('input:checkbox').attr('checked','checked');
$('#button').click( function (event) {
var memoData = [];
$.each($("input[name='memo']:checked"), function(){
memoData.push($(this).val());
});
var value = memoData.join(", ")
//alert("value are: " + value);
//start
$.ajax({
type:"POST",
traditional:true;
data:{value_to_send:data_to_send},
url:"../My/deleteAll/",
success : function(data) {
alert(value);// will alert "ok"
},
error : function() {
alert("false submission fail");
}
});
//end
} ); //end of button click
},function(){//uncheck
$('input:checkbox').removeAttr('checked');
});
});
my controller :
public function deleteAll(){
if( $this->request->is('POST') ) {
// echo $_POST['value_to_send'];
//echo $value = $this->request->data('value_to_send');
//or
debug($this->request->data);exit;
}
}
and result of this debug is:
\app\Controller\MyController.php (line 73)
array()
Please help me.Thank you so much

Answer 1

How about this:
Jquery:
$(document).ready(function() {
$('.checkall:button').toggle(function() {
$('input:checkbox').attr('checked','checked');
$('#button').click(function(event) {
var memoData = [];
$.each($("input[name='memo']:checked"), function(){
memoData.push($(this).val());
});
//start
$.ajax({
type: 'POST',
url: '../My/deleteAll/',
data: {value_to_send: memoData},
success : function(data) {
alert(data);// will alert "ok"
},
error : function() {
alert("false submission fail");
}
});//end ajax
}); //end of button click
},function(){//uncheck
$('input:checkbox').removeAttr('checked');
});
});
In controller:
public function deleteAll()
{
$this->autoRender = false;
if($this->request->is('Ajax')) { //<!-- Ajax Detection
$elements = explode(",", $_POST['value_to_send']);
foreach($elements as $element)
{
//find and delete
}
}
}

Answer 2

You need to set the data type as json in ajax call
JQUERY CODE:
$.ajax({
url: "../My/deleteAll/",
type: "POST",
dataType:'json',
data:{value_to_send:data_to_send},
success: function(data){
}
});