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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 |
---|---|
2036 | /** |
2037 | * Filter the arguments used in retrieving the comment list. |
2038 | * |
2039 | * @since 4.0.0 |
2040 | * |
2041 | * @see wp_list_comments() |
2042 | * |
2043 | * @param array $r An array of arguments for displaying comments. |
2044 | */ |
2045 | $r = apply_filters( 'wp_list_comments_args', $r ); |
2046 |
|
2047 | // Figure out what comments we'll be looping through ($_comments) |
2048 | if ( null !== $comments ) { |
2049 | $comments = (array) $comments; |
2050 | if ( empty($comments) ) |
2051 | return; |
2052 | if ( 'all' != $r['type'] ) { |
2053 | $comments_by_type = separate_comments($comments); |
2054 | if ( empty($comments_by_type[$r['type']]) ) |