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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 |
|---|---|
| 2169 | ?> |
| 2170 | </head> |
| 2171 | <?php |
| 2172 | /** |
| 2173 | * @global string $body_id |
| 2174 | */ |
| 2175 | $admin_body_id = isset( $GLOBALS['body_id'] ) ? 'id="' . $GLOBALS['body_id'] . '" ' : ''; |
| 2176 | |
| 2177 | /** This filter is documented in wp-admin/admin-header.php */ |
| 2178 | $admin_body_classes = apply_filters( 'admin_body_class', '' ); |
| 2179 | $admin_body_classes = ltrim( $admin_body_classes . ' ' . $admin_body_class ); |
| 2180 | ?> |
| 2181 | <body <?php echo $admin_body_id; ?>class="wp-admin wp-core-ui no-js iframe <?php echo $admin_body_classes; ?>"> |
| 2182 | <script type="text/javascript"> |
| 2183 | (function(){ |
| 2184 | var c = document.body.className; |
| 2185 | c = c.replace(/no-js/, 'js'); |
| 2186 | document.body.className = c; |
| 2187 | })(); |