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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 |
|---|---|
| 1122 | $color = $_wp_admin_css_colors[$color]; |
| 1123 | $_file = $color->url; |
| 1124 | $_file = ('css/colors-rtl' == $file) ? str_replace('.css','-rtl.css',$_file) : $_file; |
| 1125 | } else { |
| 1126 | $_file = get_option( 'siteurl' ) . "/wp-admin/$file.css"; |
| 1127 | } |
| 1128 | } |
| 1129 | $_file = add_query_arg( 'version', get_bloginfo( 'version' ), $_file ); |
| 1130 | |
| 1131 | return apply_filters( 'wp_admin_css_uri', $_file, $file ); |
| 1132 | } |
| 1133 | |
| 1134 | function wp_admin_css( $file = 'wp-admin' ) { |
| 1135 | |
| 1136 | echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . wp_admin_css_uri( $file ) . "' type='text/css' />\n", $file ); |
| 1137 | if ( 'rtl' == get_bloginfo( 'text_direction' ) ) { |
| 1138 | $rtl = ( 'wp-admin' == $file ) ? 'rtl' : "$file-rtl"; |
| 1139 | echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . wp_admin_css_uri( $rtl ) . "' type='text/css' />\n", $rtl ); |
| 1140 | } |