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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1910 | * - ###ADMIN_EMAIL### The admin email in case this was unexpected. |
| 1911 | * - ###EMAIL### The old email. |
| 1912 | * - ###SITENAME### The name of the site. |
| 1913 | * - ###SITEURL### The URL to the site. |
| 1914 | * @type string $headers Headers. |
| 1915 | * } |
| 1916 | * @param array $user The original user array. |
| 1917 | * @param array $userdata The updated user array. |
| 1918 | */ |
| 1919 | $email_change_email = apply_filters( 'email_change_email', $email_change_email, $user, $userdata ); |
| 1920 | |
| 1921 | $email_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $email_change_email['message'] ); |
| 1922 | $email_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $email_change_email['message'] ); |
| 1923 | $email_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $email_change_email['message'] ); |
| 1924 | $email_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $email_change_email['message'] ); |
| 1925 | $email_change_email['message'] = str_replace( '###SITEURL###', home_url(), $email_change_email['message'] ); |
| 1926 | |
| 1927 | wp_mail( $email_change_email['to'], sprintf( $email_change_email['subject'], $blog_name ), $email_change_email['message'], $email_change_email['headers'] ); |
| 1928 | } |