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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 |
|---|---|
| 1897 | 'taxonomy' => 'post_tag', |
| 1898 | 'terms' => $q['tag_slug__and'], |
| 1899 | 'field' => 'slug', |
| 1900 | 'operator' => 'AND' |
| 1901 | ); |
| 1902 | } |
| 1903 | |
| 1904 | $this->tax_query = new WP_Tax_Query( $tax_query ); |
| 1905 | |
| 1906 | do_action( 'parse_tax_query', $this ); |
| 1907 | } |
| 1908 | |
| 1909 | /** |
| 1910 | * Generate SQL for the WHERE clause based on passed search terms. |
| 1911 | * |
| 1912 | * @since 3.7.0 |
| 1913 | * |
| 1914 | * @global type $wpdb |
| 1915 | * @param array $q Query variables. |