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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 |
|---|---|
| 102 | } else { |
| 103 | $authordata = get_userdata( $user_id ); |
| 104 | } |
| 105 | |
| 106 | if ( in_array( $field, array( 'login', 'pass', 'nicename', 'email', 'url', 'registered', 'activation_key', 'status' ) ) ) |
| 107 | $field = 'user_' . $field; |
| 108 | |
| 109 | $value = isset( $authordata->$field ) ? $authordata->$field : ''; |
| 110 | |
| 111 | return apply_filters( 'get_the_author_' . $field, $value, $user_id ); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Retrieve the requested data of the author of the current post. |
| 116 | * @link http://codex.wordpress.org/Template_Tags/the_author_meta |
| 117 | * @since 2.8.0 |
| 118 | * @param string $field selects the field of the users record. |
| 119 | * @param int $user_id Optional. User ID. |
| 120 | * @echo string The author's field from the current author's DB object. |