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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 |
|---|---|
| 2678 | // Not a match |
| 2679 | if ( substr($pattern, 0, 2) != '%l' ) |
| 2680 | return $pattern; |
| 2681 | |
| 2682 | // Nothing to work with |
| 2683 | if ( empty($args) ) |
| 2684 | return ''; |
| 2685 | |
| 2686 | // Translate and filter the delimiter set (avoid ampersands and entities here) |
| 2687 | $l = apply_filters('wp_sprintf_l', array( |
| 2688 | /* translators: used between list items, there is a space after the comma */ |
| 2689 | 'between' => __(', '), |
| 2690 | /* translators: used between list items, there is a space after the and */ |
| 2691 | 'between_last_two' => __(', and '), |
| 2692 | /* translators: used between only two list items, there is a space after the and */ |
| 2693 | 'between_only_two' => __(' and '), |
| 2694 | )); |
| 2695 | |
| 2696 | $args = (array) $args; |