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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 |
|---|---|
| 182 | $r = parent::all_deps( $handles, $recursion ); |
| 183 | if ( !$recursion ) { |
| 184 | /** |
| 185 | * Filter the array of enqueued styles before processing for output. |
| 186 | * |
| 187 | * @since 2.6.0 |
| 188 | * |
| 189 | * @param array $to_do The list of enqueued styles about to be processed. |
| 190 | */ |
| 191 | $this->to_do = apply_filters( 'print_styles_array', $this->to_do ); |
| 192 | } |
| 193 | return $r; |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * @param string $src |
| 198 | * @param string $ver |
| 199 | * @param string $handle |
| 200 | * @return string |