json stringify to php

Question

I want to pass the key values into php page.

At php page, I will start to read value by matching ajaxcallid.

But it not working.

It gotta do with syntax/way I am passing in causing error.

parse error
invalid json: ajax call id is missing

JavaScript/AJAX:

var person = { 
     "Address"    :   "123 Anywhere St.", 
     "City"       :   "Springfield", 
     "PostalCode" :   99999
};

alert(person);          

person= JSON.stringify(person);

alert(person);

$.ajax({
    url: 'ROOT_URL/admin/ajaxtest.php',
    type: "POST",
    dataType: 'json',
    data: {ajaxcallid: '26', jsarr: person},
    timeout: 5000,
    success:  function(output) {
        alert(output.Address);
    },
});

PHP:

<?php
if (isset($_REQUEST['ajaxcallid']))
{    
    if($_REQUEST['ajaxcallid']==26)
    {    
        //example, I want to read value of person.Address, person.City, 
        //person.PostalCode
    //what is the easiest way
        $phparr= json_decode($_REQUEST['jsarr']);
        //do all other operation
        $output= json_encode($phparr);
    }
}
else
{
    $output= "ajax call id is missing";
}
echo $output;
?>

Please dump your $phparr just before encoding as JSON and paste the output. — BoltClock
– BoltClock, Commented Feb 14, 2011 at 5:51

Evalds Urtans · Accepted Answer · 2013-04-25 13:24:35Z

32

If you are not using dataType : 'json', you might need to do stripslashes

$.post(window.data.baseUrl, {posts : JSON.stringify(posts)});

And in php:

$posts = json_decode(stripslashes($_POST['posts']));

answered Apr 25, 2013 at 13:24

Evalds Urtans

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Comments

amol challawar · Accepted Answer · 2013-03-13 08:26:15Z

7

This helped me:

 data = json_decode($this->request->data['jsarr'], true);

in your php code for accessing the record

Hope it will help someone!

answered Mar 13, 2013 at 8:26

amol challawar

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Comments

muddybruin · Accepted Answer · 2011-02-14 05:57:54Z

5

I'm going to take a guess and say that you SHOULDN'T stringify anything. I believe JQuery will do that for you. Namely, no person = JSON.stringify(person). Give that a try.

answered Feb 14, 2011 at 5:57

muddybruin

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2 Comments

gion_13 Over a year ago

absolutely agree. why would you encapsulate the stringified parameters in an object and then send them through ajax, when jquery passes an OBJECT of parameters.

tiltdown Over a year ago

max_input_vars in PHP 5.3.9. limits input vars to 1000 if you have huge json file then it can give you PHP warning.

Peter Oram · Accepted Answer · 2012-10-24 04:59:56Z

This is what your $.ajax call and the PHP side should look like:

JQuery

$.ajax({
    url: "/admin/ajaxtest.php",
    method: "POST",
    data: {
        ajaxcallid: "26",
        person: JSON.stringify({
            "Address" : "123 Anywhere St.",
            "City" : "Springfield",
            "PostalCode" : "99999"
        })
    }
}).done(function(data) {
    if (!data) {
        // generic error message here
    } else if (data == 'invalid') {
        alert('no ajaxcallid received');
    } else {
        var result = $.parseJSON(data); // if you pass back the object
        alert(result.Address);
    }
});

PHP

if (isset($_REQUEST['ajaxcallid'])) {
    if ((int) $_REQUEST['ajaxcallid'] == 26) {
        $personData = json_decode($_REQUEST['person']);
        $address = $personData->Address;
        $postalCode = $personData->PostalCode;
        $returnData = json_encode($personData);
        echo $personData;
        die();
    }
} else {
    echo 'invalid';
    die();
}

Stefan Pavlov · Accepted Answer · 2020-06-30 07:14:15Z

2

$data_array = json_decode($json_string);

If you want objects to be converted into associative arrays, then add true into function:

$data_array = json_decode($json_string, true);

answered Jun 30, 2020 at 7:14

Stefan Pavlov

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Comments

amantur · Accepted Answer · 2011-02-14 05:51:20Z

0

I have not worked with PHP but from my experience with ASP.net following may help you.

Add contentType key to ajax settigns:

type: "POST",
contentType:'application/json',
dataType: 'json',

also I think you need to stringify whole value you are assigning to data like this:

var person = { 
     "Address"    :   "123 Anywhere St.", 
     "City"       :   "Springfield", 
     "PostalCode" :   99999
};

var d= {ajaxcallid: '26', jsarr: person};
var dat=JSON.stringify(d);


......
data: dat,
......

answered Feb 14, 2011 at 5:51

amantur

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