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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 |
|---|---|
| 2759 | // Not a match |
| 2760 | if ( substr($pattern, 0, 2) != '%l' ) |
| 2761 | return $pattern; |
| 2762 | |
| 2763 | // Nothing to work with |
| 2764 | if ( empty($args) ) |
| 2765 | return ''; |
| 2766 | |
| 2767 | // Translate and filter the delimiter set (avoid ampersands and entities here) |
| 2768 | $l = apply_filters('wp_sprintf_l', array( |
| 2769 | /* translators: used between list items, there is a space after the comma */ |
| 2770 | 'between' => __(', '), |
| 2771 | /* translators: used between list items, there is a space after the and */ |
| 2772 | 'between_last_two' => __(', and '), |
| 2773 | /* translators: used between only two list items, there is a space after the and */ |
| 2774 | 'between_only_two' => __(' and '), |
| 2775 | )); |
| 2776 | |
| 2777 | $args = (array) $args; |