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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 |
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1022 |
|
1023 | /** |
1024 | * Filter the query arguments for the user drop-down. |
1025 | * |
1026 | * @since 4.4.0 |
1027 | * |
1028 | * @param array $query_args The query arguments for wp_dropdown_users(). |
1029 | * @param array $r The default arguments for wp_dropdown_users(). |
1030 | */ |
1031 | $query_args = apply_filters( 'wp_dropdown_users_args', $query_args, $r ); |
1032 |
|
1033 | $users = get_users( $query_args ); |
1034 |
|
1035 | $output = ''; |
1036 | if ( ! empty( $users ) && ( empty( $r['hide_if_only_one_author'] ) || count( $users ) > 1 ) ) { |
1037 | $name = esc_attr( $r['name'] ); |
1038 | if ( $r['multi'] && ! $r['id'] ) { |
1039 | $id = ''; |
1040 | } else { |