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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 |
|---|---|
| 1934 | do_action( "admin_print_scripts-$hook_suffix" ); |
| 1935 | |
| 1936 | /** This action is documented in wp-admin/admin-header.php */ |
| 1937 | do_action( 'admin_print_scripts' ); |
| 1938 | |
| 1939 | /** This action is documented in wp-admin/admin-header.php */ |
| 1940 | do_action( "admin_head-$hook_suffix" ); |
| 1941 | |
| 1942 | /** This action is documented in wp-admin/admin-header.php */ |
| 1943 | do_action( 'admin_head' ); |
| 1944 | |
| 1945 | $admin_body_class .= ' locale-' . sanitize_html_class( strtolower( str_replace( '_', '-', get_user_locale() ) ) ); |
| 1946 | |
| 1947 | if ( is_rtl() ) { |
| 1948 | $admin_body_class .= ' rtl'; |
| 1949 | } |
| 1950 | |
| 1951 | ?> |
| 1952 | </head> |