Description
The function gf_has_filters() determines if a callback has been registered for the specified filter.
Usage
gf_has_filters( array( 'filter_name', $modifier1 ) );
This helper function also has an alias, gf_has_filter(), which can be used like so:
gf_has_filter( array( 'filter_name', $modifier1 ) );
Parameters
| Parameter | Type | Description |
|---|---|---|
| $filter | array | Array containing the filter tag as well as the possible modifiers. |
| $function_to_check | bool|callable | The optional callback to check for. |
Returns
Returns boolean for whether the hook has any callbacks registered or if a specific callback is registered.
Examples
$result = gf_has_filters( array( 'gform_pre_render', $form_id ) );
$result = gf_has_filter( array( 'gform_pre_render', $form_id ) );
$result = gf_has_filters( array( 'gform_disable_view_counter', $form_id ), '__return_true' );
Since
The gf_has_filters and gf_has_filter functions were added in Gravity Forms version 2.4.18.
Source Code
These helper functions are located in gravityforms.php