JSON parse using JSON from PHP

Question

I use a webservice to create a PHP array $result, but when passed to javascript and JSON.parse, nothing results. I am a newbie with php and JS arrays, have done much googling, but cannot find the answer. Help welcome!

First the output in a browser, where the PHP array prints out, but the javascript does not output anything:-


1) Results of PHP array print
Array
(
    [hotels] => Array
        (
            [codigo] => LIMHBM
            [fecha] => 2016/9/15
            [cannoc] => 1
            [canhab] => 1
            [canpax] => 2
            [estado] => OK
        )

)
2) Results of JSON parse: none

The relevant code part:-

1) Results of PHP array print
<pre><?php print_r($result); ?></pre>

2) Results of JSON parse: 
<span id="demo">none</span>

<script type="text/javascript">
var result = JSON.parse( '<?php echo json_encode($result) ?>' );
document.getElementById("demo").innerHTML = result.hotels[0].codigo + " " + result.hotels[0].estado;
</script>

Death-is-the-real-truth · Accepted Answer · 2016-04-22 21:32:35Z

1

Actually your code is right till the last line of javascript code which is:-

document.getElementById("demo").innerHTML = result.hotels[0].codigo + " " + result.hotels[0].estado;

Change it to:-

document.getElementById("demo").innerHTML = result.hotels.codigo+ " " + result.hotels.estado;

Example:-

<?php 

$result = Array
(
    'hotels' => Array
        (
            'codigo' => 'LIMHBM',
            'fecha' => '2016/9/15',
            'cannoc' => 1,
            'canhab' => 1,
            'canpax' => 2,
            'estado' => 'OK'
        )

);
?>
1) Results of PHP array print
<?php echo "<pre/>";print_r($result); ?>

2) Results of JSON parse: 
<span id="demo">none</span>

<script type="text/javascript">
var result =  JSON.parse('<?php echo json_encode($result) ?>');
console.log(result); // to just show you te output in console
document.getElementById("demo").innerHTML = result.hotels.codigo+ " " + result.hotels.estado;
</script>

Output:- http://prntscr.com/avm729

For multidimensional array help, check this:-

http://prntscr.com/avmcp3

edited Apr 22, 2016 at 21:32

answered Apr 22, 2016 at 21:20

Death-is-the-real-truth

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5 Comments

Paul Over a year ago

Great, this worked fine, and is the answer as far as I'm concerned. If instead of one hotel within the 'hotels' array, there are several, would it then be correct to use codigo[1], estado[1] etc?

Death-is-the-real-truth Over a year ago

Yes then you need to go for that.

Paul Over a year ago

Thanks again, perfect!

Paul Over a year ago

Thanks again Anant, I checked out with several hotels and that worked too. One last question, don't answer if a nuisance, but if there are several hotels, how to search for say the codigo LIMBXX amongst the results?

Death-is-the-real-truth Over a year ago

@Paul search for javascript loop on array concept on google. some spelling correction and then you will find out lot of examples.

Marc B · Accepted Answer · 2016-04-22 21:08:15Z

0

This bit is pointless:

var result = JSON.parse( '<?php echo json_encode($result) ?>' );

JSON is already valid javascript, so there's NO need to parse it. All you need to do is dump it out directly into the code block:

var result = <?php echo json_encode($result); ?>;

answered Apr 22, 2016 at 21:08

Marc B

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