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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 |
---|---|
3028 | * Filters the SELECT clause of the query. |
3029 | * |
3030 | * For use by caching plugins. |
3031 | * |
3032 | * @since 2.5.0 |
3033 | * |
3034 | * @param string $fields The SELECT clause of the query. |
3035 | * @param WP_Query $query The WP_Query instance (passed by reference). |
3036 | */ |
3037 | $fields = apply_filters_ref_array( 'posts_fields_request', array( $fields, &$this ) ); |
3038 |
|
3039 | /** |
3040 | * Filters the LIMIT clause of the query. |
3041 | * |
3042 | * For use by caching plugins. |
3043 | * |
3044 | * @since 2.5.0 |
3045 | * |
3046 | * @param string $limits The LIMIT clause of the query. |