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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 145 | global $wp_rewrite; |
| 146 | if ( !$year ) |
| 147 | $year = gmdate('Y', time()+(get_settings('gmt_offset') * 3600)); |
| 148 | if ( !$month ) |
| 149 | $month = gmdate('m', time()+(get_settings('gmt_offset') * 3600)); |
| 150 | $monthlink = $wp_rewrite->get_month_permastruct(); |
| 151 | if ( !empty($monthlink) ) { |
| 152 | $monthlink = str_replace('%year%', $year, $monthlink); |
| 153 | $monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink); |
| 154 | return apply_filters('month_link', get_settings('home') . trailingslashit($monthlink), $year, $month); |
| 155 | } else { |
| 156 | return apply_filters('month_link', get_settings('home') . '/?m=' . $year . zeroise($month, 2), $year, $month); |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | function get_day_link($year, $month, $day) { |
| 161 | global $wp_rewrite; |
| 162 | if ( !$year ) |
| 163 | $year = gmdate('Y', time()+(get_settings('gmt_offset') * 3600)); |
| 164 | if ( !$month ) |
| 165 | $month = gmdate('m', time()+(get_settings('gmt_offset') * 3600)); |