acf/schema/format_value/type={field_type}

Documentation Filters acf/schema/format_value/type={field_type}

Last updated Mar 31, 2026

Overview

Filter formatted values for a specific field type.

Description

This filter is a field type specific version of acf/schema/format_value. It allows you to modify formatted values only for a specific ACF field type.

The dynamic portion of the hook name, {field_type}, refers to the ACF field type (e.g., text, number, image).

Changelog

• Added in version 6.8.0

Parameters

apply_filters( 'acf/schema/format_value/type={field_type}', $formatted_value, $value, $field_object );

• $formatted_value (mixed) The value after default formatting
• $value (mixed) The original raw field value
• $field_object (array) The field object with settings

Return

(mixed) The modified formatted value.

Example

This example ensures all number fields output as floats.

/**
 * Format numbers as floats.
 *
 * @param mixed $formatted_value The formatted value.
 * @param mixed $value           The raw value.
 * @param array $field_object    The field object.
 * @return mixed Modified value.
 */
function my_acf_schema_format_numbers( $formatted_value, $value, $field_object ) {
    return (float) $formatted_value;
}
add_filter( 'acf/schema/format_value/type=number', 'my_acf_schema_format_numbers', 10, 3 );

This example customizes image output format.

/**
 * Custom image formatting with additional metadata.
 *
 * @param mixed $formatted_value The formatted value.
 * @param mixed $value           The raw value (attachment ID).
 * @param array $field_object    The field object.
 * @return mixed Modified value.
 */
function my_acf_schema_format_images( $formatted_value, $value, $field_object ) {
    if ( ! is_array( $formatted_value ) || ! isset( $formatted_value['@type'] ) ) {
        return $formatted_value;
    }

    // Add license info to all images
    $formatted_value['license'] = 'https://creativecommons.org/licenses/by/4.0/';

    // Add content URL
    if ( isset( $formatted_value['url'] ) ) {
        $formatted_value['contentUrl'] = $formatted_value['url'];
    }

    return $formatted_value;
}
add_filter( 'acf/schema/format_value/type=image', 'my_acf_schema_format_images', 10, 3 );

Related

• Filters: acf/schema/format_value/name={field_name}
• Filters: acf/schema/format_value/pre/type={field_type}
• Filters: acf/schema/format_value
• Filters: acf/schema/format_value/pre/name={field_name}
• Filters: acf/schema/format_value/pre