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sanitize_bookmark_field( string $field, mixed $value, int $bookmark_id, string $context )

Sanitizes a bookmark field.

Description

Sanitizes the bookmark fields based on what the field name is. If the field has a strict value set, then it will be tested for that, else a more generic filtering is applied. After the more strict filter is applied, if the $context is ‘raw’ then the value is immediately return.

Hooks exist for the more generic cases. With the ‘edit’ context, the ‘edit_$field’ filter will be called and passed the $value and $bookmark_id respectively.

With the ‘db’ context, the ‘pre_$field’ filter is called and passed the value. The ‘display’ context is the final context and has the $field has the filter name and is passed the $value, $bookmark_id, and $context, respectively.

Parameters

$field

(string) (Required) The bookmark field.

$value

(mixed) (Required) The bookmark field value.

$bookmark_id

(int) (Required) Bookmark ID.

$context

(string) (Required) How to filter the field value. Accepts 'raw', 'edit', 'attribute', 'js', 'db', or 'display'

Return

(mixed) The filtered value.

Source

File: wp-includes/bookmark.php

function sanitize_bookmark_field( $field, $value, $bookmark_id, $context ) {
	switch ( $field ) {
		case 'link_id': // ints
		case 'link_rating':
			$value = (int) $value;
			break;
		case 'link_category': // array( ints )
			$value = array_map( 'absint', (array) $value );
			// We return here so that the categories aren't filtered.
			// The 'link_category' filter is for the name of a link category, not an array of a link's link categories.
			return $value;

		case 'link_visible': // bool stored as Y|N
			$value = preg_replace( '/[^YNyn]/', '', $value );
			break;
		case 'link_target': // "enum"
			$targets = array( '_top', '_blank' );
			if ( ! in_array( $value, $targets, true ) ) {
				$value = '';
			}
			break;
	}

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

	if ( 'edit' === $context ) {
		/** This filter is documented in wp-includes/post.php */
		$value = apply_filters( "edit_{$field}", $value, $bookmark_id );

		if ( 'link_notes' === $field ) {
			$value = esc_html( $value ); // textarea_escaped
		} else {
			$value = esc_attr( $value );
		}
	} elseif ( 'db' === $context ) {
		/** This filter is documented in wp-includes/post.php */
		$value = apply_filters( "pre_{$field}", $value );
	} else {
		/** This filter is documented in wp-includes/post.php */
		$value = apply_filters( "{$field}", $value, $bookmark_id, $context );

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

	return $value;
}

Changelog

Version Description
2.3.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/sanitize_bookmark_field