The contact-form-7 wpcf7 validate {$type} hook.
Published Date - July 22, 2023
$result = apply_filters( "wpcf7_validate_{$type}", $result, $tag );
$result
$tag
The following example is for adding a hook callback.
// define the wpcf7_validate_{$type} callback
function custom_wpcf7_validate_type( $result, $tag ){
//custom code here
return $result
}
//add the action
add_filter('wpcf7_validate_{$type}', 'custom_wpcf7_validate_{$type}', 10, 2)
The filter is defined in the following location(s).
contact-form-7/includes/submission.php
$result = apply_filters( "wpcf7_validate_{$type}", $result, $tag );