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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 |
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406 |
|
407 | /** |
408 | * Filters the network query clauses. |
409 | * |
410 | * @since 4.6.0 |
411 | * |
412 | * @param array $pieces A compacted array of network query clauses. |
413 | * @param WP_Network_Query &$this Current instance of WP_Network_Query, passed by reference. |
414 | */ |
415 | $clauses = apply_filters_ref_array( 'networks_clauses', array( compact( $pieces ), &$this ) ); |
416 |
|
417 | $fields = isset( $clauses['fields'] ) ? $clauses['fields'] : ''; |
418 | $join = isset( $clauses['join'] ) ? $clauses['join'] : ''; |
419 | $where = isset( $clauses['where'] ) ? $clauses['where'] : ''; |
420 | $orderby = isset( $clauses['orderby'] ) ? $clauses['orderby'] : ''; |
421 | $limits = isset( $clauses['limits'] ) ? $clauses['limits'] : ''; |
422 | $groupby = isset( $clauses['groupby'] ) ? $clauses['groupby'] : ''; |
423 |
|
424 | if ( $where ) { |