Using Gravity Forms "gform_field_validation" - php

Question

I want to validate the field using gform_field_validation I found this documentation
but not that helpful
add_filter("gform_field_validation", "custom_validation", 10, 4);
function custom_validation($result, $value, $form, $field){
$number = GFCommon::to_number($value,"");
if (($field["id"] == 1) && ($field["id"] == 1))
if( ($result["is_valid"]) && ($number >= 1000) && ($number <= 1999)){
$result["is_valid"] = false;
$result["message"] = "INCORRECT NUMBER";
}
return $result;
}
Any suggestions will be appreciated

Answer 1

#GDB Many thanks, here I found the solution as below
add_filter("gform_field_validation", "custom_validation", 10, 4);
function custom_validation($result, $value, $form, $field){
if (($field["id"] == 1) && ($field["id"] == 1))
if( ((intval($value) > 999) || (intval($value) < 2000)){
$result["is_valid"] = false;
$result["message"] = "INCORRECT NUMBER";
}
return $result;
}