heartdevil

<form name="loginForm" id="loginForm" action="<?php echo esc_url(get_admin_url() . 'admin-post.php') ?>" method="post">
	<input type="hidden" name="action" value="login-form" />
	<?php wp_nonce_field('process_login_form_action','login_form_sec_field'); ?>

add_action('admin_post_submit-form', 'process_mail_form_action'); // для залогинненых пользователей
add_action('admin_post_nopriv_submit-form', 'process_mail_form_action'); // для незалогинненых пользователей один и тот же обработчик
function process_mail_form_action()
{
// тут читаете из $_POST
}

add_action( 'wp_login_failed', 'custom_redirect_login_fail' );  // hook failed login
function custom_redirect_login_fail( $username ) {
     $referrer = $_SERVER['HTTP_REFERER'];  // where did the post submission come from?
     // if there's a valid referrer, and it's not the default log-in screen
     if ( !empty($referrer) && !strstr($referrer,'wp-login') && !strstr($referrer,'wp-admin') ) {
          wp_redirect(home_url() . '/?login=failed' );  // let's append some information (login=failed) to the URL for the theme to use
          exit;
     }
}

$("#inputtextid").change(function(){
    alert("The text has been changed.");
});

SELECT CURDATE() - INTERVAL CASE WHEN DAYOFWEEK(CURDATE()) = 1 THEN 13 ELSE DAYOFWEEK(CURDATE()) + 5 END DAY -- start of the previous week
SELECT CURDATE() - INTERVAL CASE WHEN DAYOFWEEK(CURDATE()) = 1 THEN 6 ELSE DAYOFWEEK(CURDATE()) - 1 END DAY -- end of the previous week

SELECT DATE_ADD(CURDATE(), INTERVAL - DAYOFMONTH(CURDATE()) DAY) -- end of the previous month

SELECT DATE_ADD(DATE_ADD(CURDATE(), INTERVAL - DAYOFMONTH(CURDATE()) DAY), INTERVAL - DAYOFMONTH(DATE_ADD(CURDATE(), INTERVAL - DAYOFMONTH(CURDATE()) DAY)) + 1 DAY) -- start of the previous month