//Define the key to store in the database define( 'CF7_COUNTER', 'cf7-counter' ); //Create the shortcode which will set the value for the DTX field function cf7dtx_counter(){ $val = get_option( CF7_COUNTER, 0) + 1; //Increment the current count return $val; } add_shortcode('CF7_counter', 'cf7dtx_counter'); //Action performed when the mail is actually sent by CF7 function cf7dtx_increment_mail_counter(){ $val = get_option( CF7_COUNTER, 0) + 1; //Increment the current count update_option(CF7_COUNTER, $val); //Update the settings with the new count } add_action('wpcf7_mail_sent', 'cf7dtx_increment_mail_counter');
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