Post Json String Get Null

I have converted all the entries of a form into an object and then fill it using the object to fill an array: var jsonObj = []; var formData = new FormData(); $('[name=''+form+'']

Solution 1:

Simpler way to send json is:

$.ajax({
    url: url,
    data: jsonData, // stringified JSONcontentType: 'application/json',
   // processData: false,type: 'POST',
    //cache: false, POST won't cacheerror: function(xhr, status, error) {
        alert(error);
    },
    success: function(response) {
        alert(response);
    }
});

And receive in php

$data = json_decode(file_get_contents('php://input')[,boolean to force array]);

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Easiest way to send data in general is to use serialize() on form and send as default content type and receive various fields as $_POST[inputName]