Problem with php handling ajax in the same file - html

Question

I have a serious problem, I can't receive data sent by ajax in php. I've read many tutorial about that but it still not resolved. So if you guys have the magic solution, it'll make my day.
Here is the code, note that it is in the same file problem.php.
assocStored is an array or object, and it have the right data if I check it on jvascript
window.onload = function(e){
var assocStored = JSON.parse(localStorage.getItem("associes"));
$.ajax({
type : "POST",
data : {"problem" : assocStored},
success : function(res){
console.log("action performed successfully");
}
})
}
<div>
<h3>php</h3>
<?php
var_dump ($_POST);
if( isset($_POST['problem']) ){
foreach ($_POST['problem'] as $associe) {
echo($associe["sex"]." ".$associe["firstname"]." ".$associe["lastname"]);
}
exit;
}
?>
</div>

Answer 1

As my comment above, I guess your request send a GET method.
In your code, you are using type is POST but type is an alias for method. You should use type if you are using versions of jQuery prior to 1.9.0.
So you can modify your ajax to here:
$.ajax({
method: "POST",
data : { "problem" : JSON.stringify(assocStored) }, // convert to json
dataType: "json", // add type
success : function(res){
console.log("action performed successfully");
}
})
If it continues not working, add this code to ajax:
$.ajax({
method: "POST",
data : { "problem" : JSON.stringify(assocStored) }, // convert to json
dataType: "json", // add type
beforeSend: function(req) {
if (req && req.overrideMimeType) {
req.overrideMimeType("application/j-son;charset=UTF-8");
}
},
success : function(res){
console.log("action performed successfully");
}
})
I hope it works.