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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 |
|---|---|
| 1377 | if (strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== false) |
| 1378 | $link .= 'setTimeout(a,0);'; |
| 1379 | else |
| 1380 | $link .= 'a();'; |
| 1381 | |
| 1382 | $link .= "void(0);"; |
| 1383 | |
| 1384 | $link = str_replace(array("\r", "\n", "\t"), '', $link); |
| 1385 | |
| 1386 | return apply_filters('shortcut_link', $link); |
| 1387 | } |
| 1388 | |
| 1389 | /** |
| 1390 | * Retrieve the site url. |
| 1391 | * |
| 1392 | * Returns the 'site_url' option with the appropriate protocol, 'https' if |
| 1393 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 1394 | * overridden. |
| 1395 | * |