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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 |
|---|---|
| 945 | 'link' => apply_filters( 'dashboard_primary_link', __( 'http://wordpress.org/news/' ) ), |
| 946 | |
| 947 | /** |
| 948 | * Filter the primary feed URL for the 'WordPress News' dashboard widget. |
| 949 | * |
| 950 | * @since 2.3.0 |
| 951 | * |
| 952 | * @param string $url The widget's primary feed URL. |
| 953 | */ |
| 954 | 'url' => apply_filters( 'dashboard_primary_feed', __( 'http://wordpress.org/news/feed/' ) ), |
| 955 | |
| 956 | /** |
| 957 | * Filter the primary link title for the 'WordPress News' dashboard widget. |
| 958 | * |
| 959 | * @since 2.3.0 |
| 960 | * |
| 961 | * @param string $title Title attribute for the widget's primary link. |
| 962 | */ |
| 963 | 'title' => apply_filters( 'dashboard_primary_title', __( 'WordPress Blog' ) ), |