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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 |
|---|---|
| 502 | $r = parent::all_deps( $handles, $recursion, $group ); |
| 503 | if ( ! $recursion ) { |
| 504 | /** |
| 505 | * Filters the list of script dependencies left to print. |
| 506 | * |
| 507 | * @since 2.3.0 |
| 508 | * |
| 509 | * @param array $to_do An array of script dependencies. |
| 510 | */ |
| 511 | $this->to_do = apply_filters( 'print_scripts_array', $this->to_do ); |
| 512 | } |
| 513 | return $r; |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * Processes items and dependencies for the head group. |
| 518 | * |
| 519 | * @since 2.8.0 |
| 520 | * @access public |