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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 |
---|---|
2947 | * Filters the SELECT clause of the query. |
2948 | * |
2949 | * For use by caching plugins. |
2950 | * |
2951 | * @since 2.5.0 |
2952 | * |
2953 | * @param string $fields The SELECT clause of the query. |
2954 | * @param WP_Query $query The WP_Query instance (passed by reference). |
2955 | */ |
2956 | $fields = apply_filters_ref_array( 'posts_fields_request', array( $fields, &$this ) ); |
2957 |
|
2958 | /** |
2959 | * Filters the LIMIT clause of the query. |
2960 | * |
2961 | * For use by caching plugins. |
2962 | * |
2963 | * @since 2.5.0 |
2964 | * |
2965 | * @param string $limits The LIMIT clause of the query. |