Description
This filter is executed when creating the Post Image File field and can be used to modify the “File” label.
Usage
Applies to all forms.
add_filter( 'gform_postimage_file', 'your_function_name', 10, 2 );
To target a specific form append the form id to the hook name. (format: gform_postimage_file_FORMID)
add_filter( 'gform_postimage_file_5', 'your_function_name', 10, 2 );
Examples
This example changes the default Post Image File label:
add_filter( 'gform_postimage_file', 'change_postimage_file', 10, 2 ); function change_postimage_file( $label, $form_id ) { return 'Image File'; }
Source Code
This filter is located in GF_Field_Post_Image::get_field_input() in includes/fields/class-gf-field-post-image.php.