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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 |
---|---|
1917 | */ |
1918 | function wp_admin_css_uri( $file = 'wp-admin' ) { |
1919 | if ( defined('WP_INSTALLING') ) { |
1920 | $_file = "./$file.css"; |
1921 | } else { |
1922 | $_file = admin_url("$file.css"); |
1923 | } |
1924 | $_file = add_query_arg( 'version', get_bloginfo( 'version' ), $_file ); |
1925 |
|
1926 | return apply_filters( 'wp_admin_css_uri', $_file, $file ); |
1927 | } |
1928 |
|
1929 | /** |
1930 | * Enqueues or directly prints a stylesheet link to the specified CSS file. |
1931 | * |
1932 | * "Intelligently" decides to enqueue or to print the CSS file. If the |
1933 | * 'wp_print_styles' action has *not* yet been called, the CSS file will be |
1934 | * enqueued. If the wp_print_styles action *has* been called, the CSS link will |
1935 | * be printed. Printing may be forced by passing TRUE as the $force_echo |