I have a ajax call to a php file which uses get_categories(). But it always says "Call to undefined function get_categories()" How can I make it to work? What should be included?
<?php
if(isset($_GET['slug'])) {
echo get_categories(array('taxonomy' => 'product_cat'))[0]['slur'];
}
?>
在您的 ajax php 文件中,将下面的行放在顶部。
include_once('../../../wp-load.php');
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