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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 |
|---|---|
| 2018 | $wp_styles->do_items( false ); |
| 2019 | |
| 2020 | /** |
| 2021 | * Filters whether to print the admin styles. |
| 2022 | * |
| 2023 | * @since 2.8.0 |
| 2024 | * |
| 2025 | * @param bool $print Whether to print the admin styles. Default true. |
| 2026 | */ |
| 2027 | if ( apply_filters( 'print_admin_styles', true ) ) { |
| 2028 | _print_styles(); |
| 2029 | } |
| 2030 | |
| 2031 | $wp_styles->reset(); |
| 2032 | return $wp_styles->done; |
| 2033 | } |
| 2034 | |
| 2035 | /** |
| 2036 | * Prints the styles that were queued too late for the HTML head. |