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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 |
|---|---|
| 1651 | $admin_body_class .= ' locale-' . sanitize_html_class( strtolower( str_replace( '_', '-', get_locale() ) ) ); |
| 1652 | |
| 1653 | if ( is_rtl() ) |
| 1654 | $admin_body_class .= ' rtl'; |
| 1655 | |
| 1656 | ?> |
| 1657 | </head> |
| 1658 | <?php |
| 1659 | /** This filter is documented in wp-admin/admin-header.php */ |
| 1660 | $admin_body_classes = apply_filters( 'admin_body_class', '' ); |
| 1661 | ?> |
| 1662 | <body<?php |
| 1663 | /** |
| 1664 | * @global string $body_id |
| 1665 | */ |
| 1666 | if ( isset($GLOBALS['body_id']) ) echo ' id="' . $GLOBALS['body_id'] . '"'; ?> class="wp-admin wp-core-ui no-js iframe <?php echo $admin_body_classes . ' ' . $admin_body_class; ?>"> |
| 1667 | <script type="text/javascript"> |
| 1668 | (function(){ |
| 1669 | var c = document.body.className; |