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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 |
|---|---|
| 315 | $r = parent::all_deps( $handles, $recursion, $group ); |
| 316 | if ( ! $recursion ) { |
| 317 | /** |
| 318 | * Filters the array of enqueued styles before processing for output. |
| 319 | * |
| 320 | * @since 2.6.0 |
| 321 | * |
| 322 | * @param string[] $to_do The list of enqueued style handles about to be processed. |
| 323 | */ |
| 324 | $this->to_do = apply_filters( 'print_styles_array', $this->to_do ); |
| 325 | } |
| 326 | return $r; |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Generates an enqueued style's fully-qualified URL. |
| 331 | * |
| 332 | * @since 2.6.0 |
| 333 | * |