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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 |
|---|---|
| 1090 | * |
| 1091 | * @since 2.5.0 |
| 1092 | */ |
| 1093 | function wp_clear_auth_cookie() { |
| 1094 | /** |
| 1095 | * Fires just before the authentication cookies are cleared. |
| 1096 | * |
| 1097 | * @since 2.7.0 |
| 1098 | */ |
| 1099 | do_action( 'clear_auth_cookie' ); |
| 1100 | |
| 1101 | /** This filter is documented in wp-includes/pluggable.php */ |
| 1102 | if ( ! apply_filters( 'send_auth_cookies', true ) ) { |
| 1103 | return; |
| 1104 | } |
| 1105 | |
| 1106 | // Auth cookies. |
| 1107 | setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); |
| 1108 | setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); |