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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 |
|---|---|
| 2008 | ?> |
| 2009 | </head> |
| 2010 | <?php |
| 2011 | /** |
| 2012 | * @global string $body_id |
| 2013 | */ |
| 2014 | $admin_body_id = isset( $GLOBALS['body_id'] ) ? 'id="' . $GLOBALS['body_id'] . '" ' : ''; |
| 2015 | |
| 2016 | /** This filter is documented in wp-admin/admin-header.php */ |
| 2017 | $admin_body_classes = apply_filters( 'admin_body_class', '' ); |
| 2018 | $admin_body_classes = ltrim( $admin_body_classes . ' ' . $admin_body_class ); |
| 2019 | ?> |
| 2020 | <body <?php echo $admin_body_id; ?>class="wp-admin wp-core-ui no-js iframe <?php echo $admin_body_classes; ?>"> |
| 2021 | <script type="text/javascript"> |
| 2022 | (function(){ |
| 2023 | var c = document.body.className; |
| 2024 | c = c.replace(/no-js/, 'js'); |
| 2025 | document.body.className = c; |
| 2026 | })(); |