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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
2534 | /** |
2535 | * Filters whether the proposed unique term slug is bad. |
2536 | * |
2537 | * @since 4.3.0 |
2538 | * |
2539 | * @param bool $needs_suffix Whether the slug needs to be made unique with a suffix. |
2540 | * @param string $slug The slug. |
2541 | * @param object $term Term object. |
2542 | */ |
2543 | if ( apply_filters( 'wp_unique_term_slug_is_bad_slug', $needs_suffix, $slug, $term ) ) { |
2544 | if ( $parent_suffix ) { |
2545 | $slug .= $parent_suffix; |
2546 | } else { |
2547 | if ( ! empty( $term->term_id ) ) |
2548 | $query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $term->term_id ); |
2549 | else |
2550 | $query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $slug ); |
2551 |
|
2552 | if ( $wpdb->get_var( $query ) ) { |