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sanitize_post_field › WordPress Function

Since2.3.0
Deprecatedn/a
sanitize_post_field ( $field, $value, $post_id, $context = 'display' )
Parameters: (4)
  • (string) $field The Post Object field name.
    Required: Yes
  • (mixed) $value The Post Object value.
    Required: Yes
  • (int) $post_id Post ID.
    Required: Yes
  • (string) $context Optional. How to sanitize the field. Possible values are 'raw', 'edit', 'db', 'display', 'attribute' and 'js'. Default 'display'.
    Required: No
    Default: 'display'
Returns:
  • (mixed) Sanitized value.
Defined at:
Codex:
Change Log:
  • 4.4.0

Sanitizes a post field based on context.

Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display' when calling filters.


Source

function sanitize_post_field( $field, $value, $post_id, $context = 'display' ) {
	$int_fields = array( 'ID', 'post_parent', 'menu_order' );
	if ( in_array( $field, $int_fields, true ) ) {
		$value = (int) $value;
	}

	// Fields which contain arrays of integers.
	$array_int_fields = array( 'ancestors' );
	if ( in_array( $field, $array_int_fields, true ) ) {
		$value = array_map( 'absint', $value );
		return $value;
	}

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

	$prefixed = false;
	if ( str_contains( $field, 'post_' ) ) {
		$prefixed        = true;
		$field_no_prefix = str_replace( 'post_', '', $field );
	}

	if ( 'edit' === $context ) {
		$format_to_edit = array( 'post_content', 'post_excerpt', 'post_title', 'post_password' );

		if ( $prefixed ) {

			/**
			 * Filters the value of a specific post field to edit.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the post
			 * field name. Possible filter names include:
			 *
			 *  - `edit_post_author`
			 *  - `edit_post_date`
			 *  - `edit_post_date_gmt`
			 *  - `edit_post_content`
			 *  - `edit_post_title`
			 *  - `edit_post_excerpt`
			 *  - `edit_post_status`
			 *  - `edit_post_password`
			 *  - `edit_post_name`
			 *  - `edit_post_modified`
			 *  - `edit_post_modified_gmt`
			 *  - `edit_post_content_filtered`
			 *  - `edit_post_parent`
			 *  - `edit_post_type`
			 *  - `edit_post_mime_type`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value   Value of the post field.
			 * @param int   $post_id Post ID.
			 */
			$value = apply_filters( "edit_{$field}", $value, $post_id );

			/**
			 * Filters the value of a specific post field to edit.
			 *
			 * Only applied to post fields with a name which is prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field_no_prefix`, refers to the
			 * post field name minus the `post_` prefix. Possible filter names include:
			 *
			 *  - `author_edit_pre`
			 *  - `date_edit_pre`
			 *  - `date_gmt_edit_pre`
			 *  - `content_edit_pre`
			 *  - `title_edit_pre`
			 *  - `excerpt_edit_pre`
			 *  - `status_edit_pre`
			 *  - `password_edit_pre`
			 *  - `name_edit_pre`
			 *  - `modified_edit_pre`
			 *  - `modified_gmt_edit_pre`
			 *  - `content_filtered_edit_pre`
			 *  - `parent_edit_pre`
			 *  - `type_edit_pre`
			 *  - `mime_type_edit_pre`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value   Value of the post field.
			 * @param int   $post_id Post ID.
			 */
			$value = apply_filters( "{$field_no_prefix}_edit_pre", $value, $post_id );
		} else {
			/**
			 * Filters the value of a specific post field to edit.
			 *
			 * Only applied to post fields not prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the
			 * post field name. Possible filter names include:
			 *
			 *  - `edit_post_ID`
			 *  - `edit_post_ping_status`
			 *  - `edit_post_pinged`
			 *  - `edit_post_to_ping`
			 *  - `edit_post_comment_count`
			 *  - `edit_post_comment_status`
			 *  - `edit_post_guid`
			 *  - `edit_post_menu_order`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value   Value of the post field.
			 * @param int   $post_id Post ID.
			 */
			$value = apply_filters( "edit_post_{$field}", $value, $post_id );
		}

		if ( in_array( $field, $format_to_edit, true ) ) {
			if ( 'post_content' === $field ) {
				$value = format_to_edit( $value, user_can_richedit() );
			} else {
				$value = format_to_edit( $value );
			}
		} else {
			$value = esc_attr( $value );
		}
	} elseif ( 'db' === $context ) {
		if ( $prefixed ) {

			/**
			 * Filters the value of a specific post field before saving.
			 *
			 * Only applied to post fields with a name which is prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the post
			 * field name. Possible filter names include:
			 *
			 *  - `pre_post_author`
			 *  - `pre_post_date`
			 *  - `pre_post_date_gmt`
			 *  - `pre_post_content`
			 *  - `pre_post_title`
			 *  - `pre_post_excerpt`
			 *  - `pre_post_status`
			 *  - `pre_post_password`
			 *  - `pre_post_name`
			 *  - `pre_post_modified`
			 *  - `pre_post_modified_gmt`
			 *  - `pre_post_content_filtered`
			 *  - `pre_post_parent`
			 *  - `pre_post_type`
			 *  - `pre_post_mime_type`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value Value of the post field.
			 */
			$value = apply_filters( "pre_{$field}", $value );

			/**
			 * Filters the value of a specific field before saving.
			 *
			 * Only applied to post fields with a name which is prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field_no_prefix`, refers to the
			 * post field name minus the `post_` prefix. Possible filter names include:
			 *
			 *  - `author_save_pre`
			 *  - `date_save_pre`
			 *  - `date_gmt_save_pre`
			 *  - `content_save_pre`
			 *  - `title_save_pre`
			 *  - `excerpt_save_pre`
			 *  - `status_save_pre`
			 *  - `password_save_pre`
			 *  - `name_save_pre`
			 *  - `modified_save_pre`
			 *  - `modified_gmt_save_pre`
			 *  - `content_filtered_save_pre`
			 *  - `parent_save_pre`
			 *  - `type_save_pre`
			 *  - `mime_type_save_pre`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value Value of the post field.
			 */
			$value = apply_filters( "{$field_no_prefix}_save_pre", $value );
		} else {
			/**
			 * Filters the value of a specific field before saving.
			 *
			 * Only applied to post fields with a name which is prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field_no_prefix`, refers to the
			 * post field name minus the `post_` prefix. Possible filter names include:
			 *
			 *  - `pre_post_ID`
			 *  - `pre_post_comment_status`
			 *  - `pre_post_ping_status`
			 *  - `pre_post_to_ping`
			 *  - `pre_post_pinged`
			 *  - `pre_post_guid`
			 *  - `pre_post_menu_order`
			 *  - `pre_post_comment_count`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value Value of the post field.
			 */
			$value = apply_filters( "pre_post_{$field}", $value );

			/**
			 * Filters the value of a specific post field before saving.
			 *
			 * Only applied to post fields with a name which is *not* prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the post
			 * field name. Possible filter names include:
			 *
			 *  - `ID_pre`
			 *  - `comment_status_pre`
			 *  - `ping_status_pre`
			 *  - `to_ping_pre`
			 *  - `pinged_pre`
			 *  - `guid_pre`
			 *  - `menu_order_pre`
			 *  - `comment_count_pre`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value Value of the post field.
			 */
			$value = apply_filters( "{$field}_pre", $value );
		}
	} else {

		// Use display filters by default.
		if ( $prefixed ) {

			/**
			 * Filters the value of a specific post field for display.
			 *
			 * Only applied to post fields with a name which is prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the post
			 * field name. Possible filter names include:
			 *
			 *  - `post_author`
			 *  - `post_date`
			 *  - `post_date_gmt`
			 *  - `post_content`
			 *  - `post_title`
			 *  - `post_excerpt`
			 *  - `post_status`
			 *  - `post_password`
			 *  - `post_name`
			 *  - `post_modified`
			 *  - `post_modified_gmt`
			 *  - `post_content_filtered`
			 *  - `post_parent`
			 *  - `post_type`
			 *  - `post_mime_type`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed  $value   Value of the prefixed post field.
			 * @param int    $post_id Post ID.
			 * @param string $context Context for how to sanitize the field.
			 *                        Accepts 'raw', 'edit', 'db', 'display',
			 *                        'attribute', or 'js'. Default 'display'.
			 */
			$value = apply_filters( "{$field}", $value, $post_id, $context );
		} else {
			/**
			 * Filters the value of a specific post field for display.
			 *
			 * Only applied to post fields name which is *not* prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the post
			 * field name. Possible filter names include:
			 *
			 *  - `post_ID`
			 *  - `post_comment_status`
			 *  - `post_ping_status`
			 *  - `post_to_ping`
			 *  - `post_pinged`
			 *  - `post_guid`
			 *  - `post_menu_order`
			 *  - `post_comment_count`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed  $value   Value of the unprefixed post field.
			 * @param int    $post_id Post ID
			 * @param string $context Context for how to sanitize the field.
			 *                        Accepts 'raw', 'edit', 'db', 'display',
			 *                        'attribute', or 'js'. Default 'display'.
			 */
			$value = apply_filters( "post_{$field}", $value, $post_id, $context );
		}

		if ( 'attribute' === $context ) {
			$value = esc_attr( $value );
		} elseif ( 'js' === $context ) {
			$value = esc_js( $value );
		}
	}

	// Restore the type for integer fields after esc_attr().
	if ( in_array( $field, $int_fields, true ) ) {
		$value = (int) $value;
	}
	return $value;
}