sanitize_term_field

	$do_object = is_object( $term );

	$term_id = $do_object ? $term->term_id : ( isset( $term['term_id'] ) ? $term['term_id'] : 0 );

	foreach ( (array) $fields as $field ) {
		if ( $do_object ) {
			if ( isset( $term->$field ) ) {
				$term->$field = sanitize_term_field( $field, $term->$field, $term_id, $taxonomy, $context );
			}
		} else {
			if ( isset( $term[ $field ] ) ) {
				$term[ $field ] = sanitize_term_field( $field, $term[ $field ], $term_id, $taxonomy, $context );
			}
		}
	}

	if ( $do_object ) {
		$term->filter = $context;
	} else {
		$term['filter'] = $context;
	}

	return $term;
}

/**
 * Cleanse the field value in the term based on the context.
 *
 * Passing a term field value through the function should be assumed to have
 * cleansed the value for whatever context the term field is going to be used.
 *
 * If no context or an unsupported context is given, then default filters will
 * be applied.
 *
 * There are enough filters for each context to support a custom filtering
 * without creating your own filter function. Simply create a function that
 * hooks into the filter you need.
 *
 * @since 2.3.0
 *
 * @param string $field    Term field to sanitize.
 * @param string $value    Search for this term value.
 * @param int    $term_id  Term ID.
 * @param string $taxonomy Taxonomy Name.
 * @param string $context  Context in which to sanitize the term field. Accepts 'edit', 'db', 'display',
 *                         'attribute', or 'js'.
 * @return mixed Sanitized field.
 */
function sanitize_term_field( $field, $value, $term_id, $taxonomy, $context ) {
	$int_fields = array( 'parent', 'term_id', 'count', 'term_group', 'term_taxonomy_id', 'object_id' );
	if ( in_array( $field, $int_fields, true ) ) {
		$value = (int) $value;
		if ( $value < 0 ) {
			$value = 0;
		}
	}

	$context = strtolower( $context );

	if ( 'raw' === $context ) {
		return $value;
	}

	if ( 'edit' === $context ) {

		/**
		 * Filters a term field to edit before it is sanitized.
		 *
		 * The dynamic portion of the filter name, `$field`, refers to the term field.
		 *
		 * @since 2.3.0
		 *
		 * @param mixed $value     Value of the term field.
		 * @param int   $term_id   Term ID.
		 * @param string $taxonomy Taxonomy slug.
		 */
		$value = apply_filters( "edit_term_{$field}", $value, $term_id, $taxonomy );

		/**
		 * Filters the taxonomy field to edit before it is sanitized.
		 *
		 * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
		 * to the taxonomy slug and taxonomy field, respectively.
		 *
		 * @since 2.3.0
		 *
		 * @param mixed $value   Value of the taxonomy field to edit.
		 * @param int   $term_id Term ID.
		 */
		$value = apply_filters( "edit_{$taxonomy}_{$field}", $value, $term_id );

		if ( 'description' === $field ) {
			$value = esc_html( $value ); // textarea_escaped
		} else {
			$value = esc_attr( $value );
		}
	} elseif ( 'db' === $context ) {

		/**
		 * Filters a term field value before it is sanitized.
		 *
		 * The dynamic portion of the filter name, `$field`, refers to the term field.
		 *
		 * @since 2.3.0
		 *
		 * @param mixed  $value    Value of the term field.
		 * @param string $taxonomy Taxonomy slug.
		 */
		$value = apply_filters( "pre_term_{$field}", $value, $taxonomy );

		/**
		 * Filters a taxonomy field before it is sanitized.
		 *
		 * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
		 * to the taxonomy slug and field name, respectively.
		 *
		 * @since 2.3.0
		 *
		 * @param mixed $value Value of the taxonomy field.
		 */
		$value = apply_filters( "pre_{$taxonomy}_{$field}", $value );

		// Back compat filters.
		if ( 'slug' === $field ) {
			/**
			 * Filters the category nicename before it is sanitized.
			 *
			 * Use the {@see 'pre_$taxonomy_$field'} hook instead.
			 *
			 * @since 2.0.3
			 *
			 * @param string $value The category nicename.
			 */
			$value = apply_filters( 'pre_category_nicename', $value );
		}
	} elseif ( 'rss' === $context ) {

		/**
		 * Filters the term field for use in RSS.
		 *
		 * The dynamic portion of the filter name, `$field`, refers to the term field.
		 *
		 * @since 2.3.0
		 *
		 * @param mixed  $value    Value of the term field.
		 * @param string $taxonomy Taxonomy slug.
		 */
		$value = apply_filters( "term_{$field}_rss", $value, $taxonomy );

		/**
		 * Filters the taxonomy field for use in RSS.