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How is the data saved?
The repeater field saves all it’s data in the wp_postmeta table. If your repeater field is called “gallery” and contains 2 sub fields called “image” and “description”, this would be the database structure of 2 rows of data:
// meta_key meta_value
gallery 2 // number of rows gallery_0_image 6 // sub field value gallery_0_description "some text" // sub field value gallery_1_image 7 // sub field value gallery_1_description "some text" // sub field value
$post->repeater_0_subfield //for first row $post->repeater_1_subfield //for second row ...
or create a foreach or a while loop: described here
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