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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 |
---|---|
1345 | /* translators: 1: first name, 2: last name */ |
1346 | $display_name = sprintf( _x( '%1$s %2$s', 'Display name based on first name and last name' ), $first_name, $last_name ); |
1347 | elseif ( $first_name ) |
1348 | $display_name = $first_name; |
1349 | elseif ( $last_name ) |
1350 | $display_name = $last_name; |
1351 | else |
1352 | $display_name = $user_login; |
1353 | } |
1354 | $display_name = apply_filters( 'pre_user_display_name', $display_name ); |
1355 |
|
1356 | if ( empty($description) ) |
1357 | $description = ''; |
1358 | $description = apply_filters('pre_user_description', $description); |
1359 |
|
1360 | if ( empty($rich_editing) ) |
1361 | $rich_editing = 'true'; |
1362 |
|
1363 | if ( empty($comment_shortcuts) ) |