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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 |
|---|---|
| 7664 | /** |
| 7665 | * Filters whether to send the site admin email change notification email. |
| 7666 | * |
| 7667 | * @since 4.9.0 |
| 7668 | * |
| 7669 | * @param bool $send Whether to send the email notification. |
| 7670 | * @param string $old_email The old site admin email address. |
| 7671 | * @param string $new_email The new site admin email address. |
| 7672 | */ |
| 7673 | $send = apply_filters( 'send_site_admin_email_change_email', $send, $old_email, $new_email ); |
| 7674 | |
| 7675 | if ( ! $send ) { |
| 7676 | return; |
| 7677 | } |
| 7678 | |
| 7679 | /* translators: Do not translate OLD_EMAIL, NEW_EMAIL, SITENAME, SITEURL: those are placeholders. */ |
| 7680 | $email_change_text = __( |
| 7681 | 'Hi, |
| 7682 | |