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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 |
|---|---|
| 1 | <?php |
| 2 | |
| 3 | function get_the_author($deprecated = '') { |
| 4 | global $authordata; |
| 5 | return apply_filters('the_author', $authordata->display_name); |
| 6 | } |
| 7 | |
| 8 | // Using echo = false is deprecated. Use get_the_author instead. |
| 9 | function the_author($deprecated = '', $deprecated_echo = true) { |
| 10 | if ( $deprecated_echo ) |
| 11 | echo get_the_author(); |
| 12 | return get_the_author(); |
| 13 | } |
| 14 | |