Do you know you can add functionality to your Gravity Forms Merge Tags. This can come in handy, for example when you want to show a field input capitalized or you want to replace certain values in the field.
How to use the Merge Tag modifier?
Take for example that you want to show a certain Merge Tag value in capital letters. A simple way to do that is to add a Gravity Forms Merge Tag modifier to your functions.php.
add_filter( 'gform_merge_tag_filter', function ( $value, $merge_tag, $modifier, $field, $raw_value ) {
if ( $merge_tag != 'all_fields' && $modifier == 'gwp_uppercase' ) {
$value = strtoupper ( $value );
}
return $value;
}, 10, 5 );
After it, you can use the gwp_uppercase modifier to output Merge Tag values in capital letters. Use it like this:
{Your first field:1:gwp_uppercase}
Simple as that.
Make automatic links
Maybe you want to make automatic links of your merge tags, especially when you know that the input is a valid link.
add_filter( 'gform_merge_tag_filter', function ( $value, $merge_tag, $modifier, $field, $raw_value ) {
if ( $merge_tag != 'all_fields' && $modifier == 'gwp_make_url' ) {
$value = "<a href='" . $value . "'>" . $value . "</a>" ;
} return $value; }, 10, 5 );
After it, you can use the gwp_make_url modifier to output a link of your url value. Use it like this:
{Your first field:1:gwp_make_url}
Simple as that.
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