Passing numerically indexed PHP array to javascript

Question

I've got a PHP array in this format:

        $js_data_array[] = array('href' =>$matches[1][0], //this is an image url
                                'title' =>'Lorem ipsum dolor sit amet, consectetur adipiscing elit',
                                 );

And I need to get it into this format in javascript

 [{
'href' : 'http://farm5.static.flickr.com/4005/4213562882_851e92f326.jpg',
'title' : 'Lorem ipsum dolor sit amet, consectetur adipiscing elit'
},{
'href' : 'http://farm5.static.flickr.com/4005/4213562882_851e92f326.jpg',
'title' : 'Lorem ipsum dolor sit amet, consectetur adipiscing elit'
}]

I'm using wp_localise_script() in wordpress to pass the data which doesn't seem to accept a json encoded array.

If I pass the array as is, I get a numerically indexed array with duplicate values of 'Array'

So, the question is, how can I pass the data as an array but without the numeric indexes? I can't have duplicate keys in a php array AFAIK.

VolkerK · Accepted Answer · 2010-08-27 11:55:43Z

1

see json_encode()

e.g.

$matches = array(1=>array(0=>'foo'));
$js_data_array = array();

$js_data_array[] = array(
'href' =>$matches[1][0], //this is an image url
  'title' =>'Lorem ipsum dolor sit amet, consectetur adipiscing elit',
);
$js_data_array[] = array(
 'href' =>$matches[1][0], //this is an image url
  'title' =>'Lorem ipsum dolor sit amet, consectetur adipiscing elit',
);

echo $json = json_encode($js_data_array);

prints

[{"href":"foo","title":"Lorem ipsum dolor sit amet, consectetur adipiscing elit"},{"href":"foo","title":"Lorem ipsum dolor sit amet, consectetur adipiscing elit"}]

answered Aug 27, 2010 at 11:55

VolkerK

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3 Comments

codecowboy Over a year ago

yeah thanks but I've tried that and can't use it with wp_localise_script()

codecowboy Over a year ago

When I log the the JSON output to the firebug console I get a string instead of an object e.g: "[{"href":"/files/2010/06/Bioreactor-4.jpg","title":"Lorem ipsum dolor sit amet, consectetur adipiscing elit"},..... Is that because of the "?

VolkerK Over a year ago

From what I read here: weblogtoolscollection.com/archives/2010/05/07/… that's not how you use this wp_localise_script() anyway.

Nico · Accepted Answer · 2012-01-03 14:56:12Z

1

You should use the wp function wp_specialchars_decode() when decoding your json data :

wp_specialchars_decode($json, ENT_QUOTES)

Where $json is your encoded array.

edited Jan 3, 2012 at 14:56

user212218

answered Feb 15, 2011 at 13:37

Nico

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Comments

codecowboy · Accepted Answer · 2010-08-27 15:15:06Z

0

It seems that wp_localize_script() encodes quotes. I therefore did a replace of " in the JS:

gallery_data = image.data.replace(/&quot;/g,'"');

answered Aug 27, 2010 at 15:15

codecowboy

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