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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 |
|---|---|
| 170 | * |
| 171 | * @since 3.9.0 |
| 172 | * |
| 173 | * @param int|null $segments The number of path segments to consider. WordPress by default looks at |
| 174 | * one path segment following the network path. The function default of |
| 175 | * null only makes sense when you know the requested path should match a site. |
| 176 | * @param string $domain The requested domain. |
| 177 | * @param string $path The requested path, in full. |
| 178 | */ |
| 179 | $segments = apply_filters( 'site_by_path_segments_count', $segments, $domain, $path ); |
| 180 | |
| 181 | if ( null !== $segments && count( $path_segments ) > $segments ) { |
| 182 | $path_segments = array_slice( $path_segments, 0, $segments ); |
| 183 | } |
| 184 | |
| 185 | $paths = array(); |
| 186 | |
| 187 | while ( count( $path_segments ) ) { |
| 188 | $paths[] = '/' . implode( '/', $path_segments ) . '/'; |