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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 |
|---|---|
| 188 | |
| 189 | /** |
| 190 | * Filters the login page body classes. |
| 191 | * |
| 192 | * @since 3.5.0 |
| 193 | * |
| 194 | * @param string[] $classes An array of body classes. |
| 195 | * @param string $action The action that brought the visitor to the login page. |
| 196 | */ |
| 197 | $classes = apply_filters( 'login_body_class', $classes, $action ); |
| 198 | |
| 199 | ?> |
| 200 | </head> |
| 201 | <body class="login no-js <?php echo esc_attr( implode( ' ', $classes ) ); ?>"> |
| 202 | <?php |
| 203 | wp_print_inline_script_tag( "document.body.className = document.body.className.replace('no-js','js');" ); |
| 204 | ?> |
| 205 | |
| 206 | <?php |