acf/load_value

Description
Filters the field 
$value after being loaded.
Changelog
Added in version 4.0.0
Parameters
apply_filters( 'acf/load_value', $value, $post_id, $field );
$value (mixed) The field value.
$post_id (int|string) The post ID where the value is saved.
$field (array) The field array containing all settings.
Modifers
This filter provides modifiers to target specific fields. The following filter names are available:
acf/load_value Applies to all fields.
acf/load_value/type={$type} Applies to all fields of a specific type.
acf/load_value/name={$name} Applies to all fields of a specific name.
acf/load_value/key={$key} Applies to all fields of a specific key.
Example
This example demonstrates how to modify a field’s value.
functions.php
<?php
function my_acf_load_value( $value, $post_id, $field ) {
    if( is_string($value) ) {
        $value = str_replace( 'Old Company Name', 'New Company Name',  $value );
    }
    return $value;
}
// Apply to all fields.
add_filter('acf/load_value', 'my_acf_load_value', 10, 3);
// Apply to textarea fields.
// add_filter('acf/load_value/type=textarea', 'my_acf_load_value', 10, 3);
// Apply to fields named "hero_text".
// add_filter('acf/load_value/name=hero_text', 'my_acf_load_value', 10, 3);
// Apply to field with key "field_123abcf".
// add_filter('acf/load_value/key=field_123abcf', 'my_acf_load_value', 10, 3);