PHP serialize() format

Question

The problem is with storing serialized Data in Wordpress database. What I'm trying to do: I'm trying to store ID's of images as serialized array:

$image_id_array = array(0=>1234, 1=>2345, 2=>3456);
$gallery_serialized = serialize($image_id_array);
update_post_meta($post_id, 'gallery', $gallery_serialized);

Result I need to be stored looks like this:

a:3:{i:0;i:1234;i:1;i:2345;i:2;i:3456;}

Result, that is actually stored:

s:41:"a:20:{i:0;i:1234;i:1;i:2345;i:2;i:3456;}";

How can I drop s: value and columns?

Looks like you have multiple serialize() calls somewhere. The code you've provided gives what you want. — Jonnix
– Jonnix, Commented Mar 5, 2019 at 10:06
Do you try to skip your serialization? try: update_post_meta($post_id, 'gallery', $image_id_array); — Neodan
– Neodan, Commented Mar 5, 2019 at 10:08
You right, seems that update_post_meta serialize data by itself. Thank you! — JustinasT
– JustinasT, Commented Mar 5, 2019 at 10:12

JustinasT · Accepted Answer · 2019-03-05 10:15:26Z

2

Seems that update_post_meta serializing data by itself. Solution:

update_post_meta($post_id, 'gallery', $image_id_array);

Thanks to @Neodan

answered Mar 5, 2019 at 10:15

JustinasT

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