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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 |
|---|---|
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * Filters the comma-delimited list of stylesheets to load in TinyMCE. |
| 588 | * |
| 589 | * @since 2.1.0 |
| 590 | * |
| 591 | * @param string $stylesheets Comma-delimited list of stylesheets. |
| 592 | */ |
| 593 | $mce_css = trim( apply_filters( 'mce_css', implode( ',', $mce_css ) ), ' ,' ); |
| 594 | |
| 595 | if ( ! empty($mce_css) ) |
| 596 | self::$first_init['content_css'] = $mce_css; |
| 597 | } |
| 598 | |
| 599 | if ( $set['teeny'] ) { |
| 600 | |
| 601 | /** |
| 602 | * Filters the list of teenyMCE buttons (Text tab). |