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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 |
|---|---|
| 282 | |
| 283 | /** |
| 284 | * Filters the network query results. |
| 285 | * |
| 286 | * @since 4.6.0 |
| 287 | * |
| 288 | * @param WP_Network[] $_networks An array of WP_Network objects. |
| 289 | * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference). |
| 290 | */ |
| 291 | $_networks = apply_filters_ref_array( 'the_networks', array( $_networks, &$this ) ); |
| 292 | |
| 293 | // Convert to WP_Network instances. |
| 294 | $this->networks = array_map( 'get_network', $_networks ); |
| 295 | |
| 296 | return $this->networks; |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Used internally to get a list of network IDs matching the query vars. |