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<?php
/**
  * From https://gist.github.com/cliffordp/75d45b7508b881abdf0b60d3aa677ecf
  *
  * Redirect The Events Calendar: Community Events' login form to custom WordPress login form.
  *
  * If using Community Events version 4.4.7 (June 1, 2017) or later, use https://gist.github.com/cliffordp/c78a2ca22a6f231abb5754540a5f86f4 instead
  *
  * @link https://developer.wordpress.org/reference/functions/wp_redirect/
  *
  */
add_action( 'tribe_ce_event_submission_login_form', 'cliff_custom_login_url' );
add_action( 'tribe_ce_event_list_login_form', 'cliff_custom_login_url' );
function cliff_custom_login_url() {
	wp_redirect( '/some/page/' ); // enter your full URL -- e.g. with https:// -- or a relative path here
	exit();
}