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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 |
|---|---|
| 1384 | $rating = get_option('avatar_rating'); |
| 1385 | if ( !empty( $rating ) ) |
| 1386 | $out .= "&r={$rating}"; |
| 1387 | |
| 1388 | $avatar = "<img alt='' src='{$out}' class='avatar avatar-{$size}' height='{$size}' width='{$size}' />"; |
| 1389 | } else { |
| 1390 | $avatar = "<img alt='' src='{$default}' class='avatar avatar-{$size} avatar-default' height='{$size}' width='{$size}' />"; |
| 1391 | } |
| 1392 | |
| 1393 | return apply_filters('get_avatar', $avatar, $id_or_email, $size, $default); |
| 1394 | } |
| 1395 | endif; |
| 1396 | |
| 1397 | if ( !function_exists('wp_setcookie') ) : |
| 1398 | /** |
| 1399 | * Sets a cookie for a user who just logged in. |
| 1400 | * |
| 1401 | * @since 1.5 |
| 1402 | * @deprecated Use wp_set_auth_cookie() |