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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 |
|---|---|
| 3241 | /** |
| 3242 | * Filter whether the proposed unique term slug is bad. |
| 3243 | * |
| 3244 | * @since 4.3.0 |
| 3245 | * |
| 3246 | * @param bool $needs_suffix Whether the slug needs to be made unique with a suffix. |
| 3247 | * @param string $slug The slug. |
| 3248 | * @param object $term Term object. |
| 3249 | */ |
| 3250 | if ( apply_filters( 'wp_unique_term_slug_is_bad_slug', $needs_suffix, $slug, $term ) ) { |
| 3251 | if ( $parent_suffix ) { |
| 3252 | $slug .= $parent_suffix; |
| 3253 | } else { |
| 3254 | if ( ! empty( $term->term_id ) ) |
| 3255 | $query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $term->term_id ); |
| 3256 | else |
| 3257 | $query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $slug ); |
| 3258 | |
| 3259 | if ( $wpdb->get_var( $query ) ) { |