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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 |
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4547 |
|
4548 | /** |
4549 | * Filters the URI of a WordPress admin CSS file. |
4550 | * |
4551 | * @since 2.3.0 |
4552 | * |
4553 | * @param string $_file Relative path to the file with query arguments attached. |
4554 | * @param string $file Relative path to the file, minus its ".css" extension. |
4555 | */ |
4556 | return apply_filters( 'wp_admin_css_uri', $_file, $file ); |
4557 | } |
4558 |
|
4559 | /** |
4560 | * Enqueues or directly prints a stylesheet link to the specified CSS file. |
4561 | * |
4562 | * "Intelligently" decides to enqueue or to print the CSS file. If the |
4563 | * {@see 'wp_print_styles'} action has *not* yet been called, the CSS file will be |
4564 | * enqueued. If the {@see 'wp_print_styles'} action has been called, the CSS link will |
4565 | * be printed. Printing may be forced by passing true as the $force_echo |