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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 |
|---|---|
| 257 | |
| 258 | /** |
| 259 | * Filters the network query results. |
| 260 | * |
| 261 | * @since 4.6.0 |
| 262 | * |
| 263 | * @param array $_networks An array of WP_Network objects. |
| 264 | * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference). |
| 265 | */ |
| 266 | $_networks = apply_filters_ref_array( 'the_networks', array( $_networks, &$this ) ); |
| 267 | |
| 268 | // Convert to WP_Network instances |
| 269 | $this->networks = array_map( 'get_network', $_networks ); |
| 270 | |
| 271 | return $this->networks; |
| 272 | } |
| 273 | |
| 274 | /** |
| 275 | * Used internally to get a list of network IDs matching the query vars. |