CODEWITHSUNDEEP
phpjsonwordpress
mahdi azarm
mahdi azarm

Reputation: 349

deserialize wordpress custom field in json api plugin

In my wordpress theme there is a custom post type named songs and in that post type there is a custom field named playlist which contain songs information like artist name,download link,song lyric etc...

My problem is that this custom field is serialized in json version of my website and i don't know how to fix that.

I use json api plugin for word press.

here is an example of what it shows in json

...
"custom_fields": {
    ...
    "playlist": [
      "a:1:{i:0;a:19:{s:5:\"title\";s:44:\"Hosein Tohi And Sami Beigi - Ba Man Miraghsi\";s:3:\"mp3\";s:134:\"http:\/\/dl.paradi3emusic.com\/Musics\/Aban%2094\/Persian\/Single\/Hosein%20Tohi%20And%20Sami%20Beigi%20-%20Ba%20Man%20Miraghsi%20-%20128.mp3\";s:7:\"radioip\";s:0:\"\";s:9:\"radioport\";s:0:\"\";s:11:\"buy_title_a\";s:14:\"\u06a9\u06cc\u0641\u06cc\u062a 320\";s:10:\"buy_icon_a\";s:14:\"cloud-download\";s:10:\"buy_link_a\";s:134:\"http:\/\/dl.paradi3emusic.com\/Musics\/Aban%2094\/Persian\/Single\/Hosein%20Tohi%20And%20Sami%20Beigi%20-%20Ba%20Man%20Miraghsi%20-%20320.mp3\";s:11:\"buy_title_b\";s:14:\"\u06a9\u06cc\u0641\u06cc\u062a 128\";s:10:\"buy_icon_b\";s:14:\"cloud-download\";s:10:\"buy_link_b\";s:134:\"http:\/\/dl.paradi3emusic.com\/Musics\/Aban%2094\/Persian\/Single\/Hosein%20Tohi%20And%20Sami%20Beigi%20-%20Ba%20Man%20Miraghsi%20-%20128.mp3\";s:11:\"buy_title_c\";s:0:\"\";s:10:\"buy_icon_c\";s:14:\"cloud-download\";s:10:\"buy_link_c\";s:0:\"\";s:11:\"buy_title_d\";s:0:\"\";s:10:\"buy_icon_d\";s:14:\"cloud-download\";s:10:\"buy_link_d\";s:0:\"\";s:10:\"buy_custom\";s:0:\"\";s:11:\"lyric_title\";s:0:\"\";s:5:\"lyric\";s:0:\"\";}}"
    ],
    ...
},
...

****EDIT*****

I want to have another custom field which contain json array of these serialized data but unserialized also I tried this but didn't worked.

add_post_meta($id, 'myplaylist1', $playlist);

Upvotes: 0

Views: 1001

Answers (2)

silver
silver

Reputation: 5311

You can use wordpress built in maybe_unserialize() function to unserialize a serialize data

https://codex.wordpress.org/Function_Reference/maybe_unserialize

Upvotes: 1

Steve
Steve

Reputation: 20469

You will need to write a filter to deserialize the content before it is output by the json api plugin.

There is a filter applied by the plugin just before the json is output, documented here:

https://en-gb.wordpress.org/plugins/json-api/other_notes/#5.-Extending-JSON-API

That would be suitable for this task.

Add the following to your themes functions.php:

add_filter('json_api_encode', function($response){

    if (isset($response['posts'])) {
        foreach ($response['posts'] as $post) {
            deserialize_playlist($post);
        }
    } else if (isset($response['post'])) {
        deserialize_playlist($response['post']);
    }
    return $response;
});


function deserialize_playlist(&$post) {
    if(isset($post->custom_fields->playlist)){
        $playlists = $post->custom_fields->playlist;
        //custom fields appear to always be returned as an array
        foreach($playlists as &$playlist){
            $playlist = unserialize($playlist);
        }
        $post->custom_fields->playlist = $playlists;
    }
}

Upvotes: 2

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