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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 3910 | |
| 3911 | if ( $this->current_post == -1 ) // loop has just started |
| 3912 | /** |
| 3913 | * Fires once the loop is started. |
| 3914 | * |
| 3915 | * @since 2.0.0 |
| 3916 | * |
| 3917 | * @param WP_Query &$this The WP_Query instance (passed by reference). |
| 3918 | */ |
| 3919 | do_action_ref_array( 'loop_start', array( &$this ) ); |
| 3920 | |
| 3921 | $post = $this->next_post(); |
| 3922 | $this->setup_postdata( $post ); |
| 3923 | } |
| 3924 | |
| 3925 | /** |
| 3926 | * Determines whether there are more posts available in the loop. |
| 3927 | * |
| 3928 | * Calls the {@see 'loop_end'} action when the loop is complete. |