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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 |
|---|---|
| 1879 | // `$deprecated was pre-4.3 `$plaintext_pass`. An empty `$plaintext_pass` didn't sent a user notification. |
| 1880 | if ( 'admin' === $notify || ( empty( $deprecated ) && empty( $notify ) ) ) { |
| 1881 | return; |
| 1882 | } |
| 1883 | |
| 1884 | // Generate something random for a password reset key. |
| 1885 | $key = wp_generate_password( 20, false ); |
| 1886 | |
| 1887 | /** This action is documented in wp-login.php */ |
| 1888 | do_action( 'retrieve_password_key', $user->user_login, $key ); |
| 1889 | |
| 1890 | // Now insert the key, hashed, into the DB. |
| 1891 | if ( empty( $wp_hasher ) ) { |
| 1892 | require_once ABSPATH . WPINC . '/class-phpass.php'; |
| 1893 | $wp_hasher = new PasswordHash( 8, true ); |
| 1894 | } |
| 1895 | $hashed = time() . ':' . $wp_hasher->HashPassword( $key ); |
| 1896 | $wpdb->update( $wpdb->users, array( 'user_activation_key' => $hashed ), array( 'user_login' => $user->user_login ) ); |
| 1897 | |