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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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299 |
|
300 | /** |
301 | * Filters the network query results. |
302 | * |
303 | * @since 4.6.0 |
304 | * |
305 | * @param WP_Network[] $_networks An array of WP_Network objects. |
306 | * @param WP_Network_Query $query Current instance of WP_Network_Query (passed by reference). |
307 | */ |
308 | $_networks = apply_filters_ref_array( 'the_networks', array( $_networks, &$this ) ); |
309 |
|
310 | // Convert to WP_Network instances. |
311 | $this->networks = array_map( 'get_network', $_networks ); |
312 |
|
313 | return $this->networks; |
314 | } |
315 |
|
316 | /** |
317 | * Used internally to get a list of network IDs matching the query vars. |