sanitize_email

Очищает e-mail: убирает недопустимые символы из e-mail адреса.

Хуки из функции:
sanitize_email
Возвращает

очищенный e-mail адрес.

Использование

<?php sanitize_email( $email ) ?>
$email(строка) (обязательный)
email адрес.
По умолчанию: нет

Примеры

  1. Демонстрация возможностей:
$email = "proverka!#$%&'*+/=?^_`{|}~.---<>©??@mail.ru";
echo sanitize_email( $email );
// Получим: proverka!#$%&'*+/=?^_`{|}~.---@mail.ru

Код из


wp-includes/formatting.php

WP 4.7.2

<?php
function sanitize_email( $email ) {
	// Test for the minimum length the email can be
	if ( strlen( $email ) < 3 ) {
		/**
		 * Filters a sanitized email address.
		 *
		 * This filter is evaluated under several contexts, including 'email_too_short',
		 * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits',
		 * 'domain_no_periods', 'domain_no_valid_subs', or no context.
		 *
		 * @since 2.8.0
		 *
		 * @param string $email   The sanitized email address.
		 * @param string $email   The email address, as provided to sanitize_email().
		 * @param string $message A message to pass to the user.
		 */
		return apply_filters( 'sanitize_email', '', $email, 'email_too_short' );
	}

	// Test for an @ character after the first position
	if ( strpos( $email, '@', 1 ) === false ) {
		/** This filter is documented in wp-includes/formatting.php */
		return apply_filters( 'sanitize_email', '', $email, 'email_no_at' );
	}

	// Split out the local and domain parts
	list( $local, $domain ) = explode( '@', $email, 2 );

	// LOCAL PART
	// Test for invalid characters
	$local = preg_replace( '/[^a-zA-Z0-9!#$%&'*+/=?^_`{|}~.-]/', '', $local );
	if ( '' === $local ) {
		/** This filter is documented in wp-includes/formatting.php */
		return apply_filters( 'sanitize_email', '', $email, 'local_invalid_chars' );
	}

	// DOMAIN PART
	// Test for sequences of periods
	$domain = preg_replace( '/.{2,}/', '', $domain );
	if ( '' === $domain ) {
		/** This filter is documented in wp-includes/formatting.php */
		return apply_filters( 'sanitize_email', '', $email, 'domain_period_sequence' );
	}

	// Test for leading and trailing periods and whitespace
	$domain = trim( $domain, " tnr