Getting JSON data from jQuery AJAX call on a PHP page

Question

I would like to send data using the jQuery Ajax API:

var myData = {"param1" : $('#txtParam1').val(), "param2" : $('#txtParam2').val()};

$.ajax({
    url: 'DataService.php?action=SomeAction',
    type: 'POST',
    data: myData,
    dataType: 'json',
    contentType: "application/json; charset=utf-8",
    success: function(result) {
    alert(result.Result);}
});

When I tried to retrieve this data with PHP using

    $param1 = $_REQUEST['param1'];

$param1 is showing null and print_r($_REQUEST) is only showing action = SomeAction ..

How do I retrieve the posted data on a PHP page?

Here is Posted Data (viewed using FireBug Console) param1=somevalue1&param2=somevalue2 — Nav Ali
– Nav Ali, Commented Dec 31, 2009 at 8:47
about REQUEST... thephpcode.blogspot.com/2008/09/request-security-problem.html — mauris
– mauris, Commented Dec 31, 2009 at 9:09

Itay Sidis · Accepted Answer · 2014-12-24 23:12:06Z

9

since you're sending the ajax as "contentType: 'application/json'", you need to fetch the request body with php://input like so:

$request = file_get_contents("php://input"); // gets the raw data
$params = json_decode($request,true); // true for return as array
print_r($params);

answered Dec 24, 2014 at 23:12

Itay Sidis

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Comments

Peter Mortensen · Accepted Answer · 2012-03-30 21:17:28Z

2

Try this:

$params = json_decode( $_POST['param1']);

And then check what you have got:

var_export( $params);

Or you can use a foreach loop:

foreach( $params as $param)
{
    echo $param . '<br />';
}

You are using POST, method, dont use REQUEST because it is also less secure.

edited Mar 30, 2012 at 21:17

Peter Mortensen

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answered Dec 31, 2009 at 8:45

Sarfraz

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2 Comments

Sarfraz Over a year ago

@Nav Ali: try removing the dataType: 'json' line from your code and then see.

Nav Ali Over a year ago

can get the data when I removed content-type

Harry · Accepted Answer · 2013-10-05 05:18:34Z

1

Try using

$param1 = $_POST['param1'];

edited Oct 5, 2013 at 5:18

Harry

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answered Dec 31, 2009 at 9:00

MoeAmine

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