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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 |
|---|---|
| 1593 | ( ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && intval($match[1]) >= 420 ) || |
| 1594 | !preg_match( '!opera[ /][2-8]|konqueror|safari!i', $_SERVER['HTTP_USER_AGENT'] ) ) |
| 1595 | && 'comment.php' != $pagenow ) { |
| 1596 | $wp_rich_edit = true; |
| 1597 | } else { |
| 1598 | $wp_rich_edit = false; |
| 1599 | } |
| 1600 | } |
| 1601 | |
| 1602 | return apply_filters('user_can_richedit', $wp_rich_edit); |
| 1603 | } |
| 1604 | |
| 1605 | /** |
| 1606 | * Find out which editor should be displayed by default. |
| 1607 | * |
| 1608 | * Works out which of the two editors to display as the current editor for a |
| 1609 | * user. |
| 1610 | * |
| 1611 | * @since 2.5.0 |