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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 |
|---|---|
| 167 | |
| 168 | /** |
| 169 | * Filters the login page body classes. |
| 170 | * |
| 171 | * @since 3.5.0 |
| 172 | * |
| 173 | * @param array $classes An array of body classes. |
| 174 | * @param string $action The action that brought the visitor to the login page. |
| 175 | */ |
| 176 | $classes = apply_filters( 'login_body_class', $classes, $action ); |
| 177 | |
| 178 | ?> |
| 179 | </head> |
| 180 | <body class="login <?php echo esc_attr( implode( ' ', $classes ) ); ?>"> |
| 181 | <?php |
| 182 | /** |
| 183 | * Fires in the login page header after the body tag is opened. |
| 184 | * |
| 185 | * @since 4.6.0 |