Sanitize Block Attributes When They Are Passed

sanitize-block-attributes.php

<?php
/**
 * Sanitize an attribute based on type.
 *
 * @param array  $attributes Array of attributes.
 * @param string $attribute  The attribute to sanitize.
 * @param string $type       The type of sanitization you need (values can be integer, text, float, boolean, url).
 *
 * @return mixed Sanitized attribute. wp_error on failure.
 */
public static function sanitize_attribute( $attributes, $attribute, $type = 'text' ) {
	if ( isset( $attributes[ $attribute ] ) ) {
		switch ( $type ) {
			case 'raw':
				return $attributes[ $attribute ];
			case 'post_text':
			case 'post':
				return wp_kses_post( $attributes[ $attribute ] );
			case 'string':
			case 'text':
				return sanitize_text_field( $attributes[ $attribute ] );
			case 'bool':
			case 'boolean':
				return filter_var( $attributes[ $attribute ], FILTER_VALIDATE_BOOLEAN );
			case 'int':
			case 'integer':
				return absint( $attributes[ $attribute ] );
			case 'float':
				if ( is_float( $attributes[ $attribute ] ) ) {
					return $attributes[ $attribute ];
				}
				return 0;
			case 'url':
				return esc_url( $attributes[ $attribute ] );
			case 'default':
				return new \WP_Error( 'alerts_dlx_unknown_type', __( 'Unknown type.', 'alerts-dlx' ) );
		}
	}
	return new \WP_Error( 'alerts_dlx_attribute_not_found', __( 'Attribute not found.', 'alerts-dlx' ) );
}