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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 |
|---|---|
| 309 | * |
| 310 | * @since 3.9.0 |
| 311 | * |
| 312 | * @param int|null $segments The number of path segments to consider. WordPress by default looks at |
| 313 | * one path segment. The function default of null only makes sense when you |
| 314 | * know the requested path should match a network. |
| 315 | * @param string $domain The requested domain. |
| 316 | * @param string $path The requested path, in full. |
| 317 | */ |
| 318 | $segments = apply_filters( 'network_by_path_segments_count', $segments, $domain, $path ); |
| 319 | |
| 320 | if ( ( null !== $segments ) && count( $path_segments ) > $segments ) { |
| 321 | $path_segments = array_slice( $path_segments, 0, $segments ); |
| 322 | } |
| 323 | |
| 324 | while ( count( $path_segments ) ) { |
| 325 | $paths[] = '/' . implode( '/', $path_segments ) . '/'; |
| 326 | array_pop( $path_segments ); |
| 327 | } |