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Plugin API/Action Reference/posts selection

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This action hook is executed prior to the query, and is passed a string containing the assembled query. Note that this string is NOT passed by reference and manipulating this string will not affect the actual query. This is intended to be used primarily by caching plugins.

Example Usage

add_action( 'posts_selection', 'check_assembled_query' );

function check_assembled_query( $query ) {
    var_dump( $query );

Source File

The 'posts_selection' hook is found in /wp-includes/query.php, within the get_posts() method of the WP_Query() class.