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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 |
---|---|
2859 |
|
2860 | /** |
2861 | * Filters the LIMIT clause of the query. |
2862 | * |
2863 | * @since 2.1.0 |
2864 | * |
2865 | * @param string $limits The LIMIT clause of the query. |
2866 | * @param WP_Query $query The WP_Query instance (passed by reference). |
2867 | */ |
2868 | $limits = apply_filters_ref_array( 'post_limits', array( $limits, &$this ) ); |
2869 |
|
2870 | /** |
2871 | * Filters the SELECT clause of the query. |
2872 | * |
2873 | * @since 2.1.0 |
2874 | * |
2875 | * @param string $fields The SELECT clause of the query. |
2876 | * @param WP_Query $query The WP_Query instance (passed by reference). |
2877 | */ |