Block Links in Fluent Forms Messages
Shows an error when a Fluent Forms message field contains web links, which removes most link spam without a captcha.
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Code
$wpide_ff_link_fields = array( 'message', 'description' ); // Field names to check.
$wpide_ff_max_links = 0;
add_filter( 'fluentform/validation_errors', function ( $errors, $data ) use ( $wpide_ff_link_fields, $wpide_ff_max_links ) {
foreach ( $wpide_ff_link_fields as $name ) {
if ( empty( $data[ $name ] ) || ! is_string( $data[ $name ] ) ) {
continue;
}
if ( preg_match_all( '#(https?://|www\.|\[url|<a\s)#i', $data[ $name ] ) > $wpide_ff_max_links ) {
$errors[ $name ] = array( 'Please remove the links from your message.' );
}
}
return $errors;
}, 10, 2 );Notes
List the names of the fields to check at the top; the default is the "message" field.
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