add post meta value
Question
I am trying to add post-meta value and after this update query and after this get_post_meta value . but add_post_meta does not work .
<?php add_post_meta($post_id, 'Product_Year', trim( $_POST['Product_Year'])); ?>
<?php update_post_meta($post_id, 'Product_Year', trim( $_POST['Product_Year'])); ?>
echo $year=get_post_meta($post_id , 'Product_Year',true );
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