Parsing JSON in PHP "stdClass could not be converted to string" error

Question

I had this string:

{\"lat\":37.790388261934424,\"lng\":-122.46047996826172},{\"lat\":37.789608231530124,\"lng\":-122.46344112701416}

Then thanks to the help of StackOverflowers, I did this to strip the slashes:

$markers = stripslashes($markers);

Then I tried to add the outside brackets which seemed to be needed by the decode function

$markers = json_decode('['.$markers.']');

Was that the right way to go about it? Then I tried to do this:

foreach($markers as $key => $value) 
{
    $some_string = $some_string.' ( '.$value.' ) ';
}

Which game me this error:

Object of class stdClass could not be converted to string

But what I really need is to extract the lat/lng values into $lat , $lng variables. Could someone suggest to me how to fix the error I am getting and put the values into the variables?

Thanks, Alex

Dejan Marjanović · Accepted Answer · 2011-04-03 03:54:39Z

5

Try...

foreach($markers as $marker) 
{
     $some_string .= '('.$marker->lat.','.$marker->lng.')';
}

Result...

(37.7903882619,-122.460479968)(37.7896082315,-122.463441127)

answered Apr 3, 2011 at 3:54

Dejan Marjanović

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Comments

bensiu · Accepted Answer · 2011-04-03 03:50:35Z

3

foreach($markers as $key => $value) 
{
    // $value is object with lat and lng properties 
    $some_string = $some_string.' ( lat:'.$value->lat.' ) ';
}

answered Apr 3, 2011 at 3:50

bensiu

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Comments

Allen Hamilton · Accepted Answer · 2011-04-03 04:06:27Z

1

This was something that puzzled me too, why is json_decode() returning the data encapsulated in objects?

It turns out that all arrays in Javascript are considered objects, hence json_decode() returns them as objects of the PHP stdClass. Try to do print_r() on the $marker to see how it is structured.

answered Apr 3, 2011 at 4:06

Allen Hamilton

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Justino Caparica · Accepted Answer · 2012-09-23 16:14:27Z

0

This here works

var json = JSON.parse(<?php echo "'" . stripslashes($_POST['json']) . "'" ?>);

answered Sep 23, 2012 at 16:14

Justino Caparica

192 bronze badges

1 Comment

Jeremy J Starcher Over a year ago

This really doesn't address question better than any of the other answers do.

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