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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 |
---|---|
1666 | if (strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== false) |
1667 | $link .= 'setTimeout(a,0);'; |
1668 | else |
1669 | $link .= 'a();'; |
1670 |
|
1671 | $link .= "void(0);"; |
1672 |
|
1673 | $link = str_replace(array("\r", "\n", "\t"), '', $link); |
1674 |
|
1675 | return apply_filters('shortcut_link', $link); |
1676 | } |
1677 |
|
1678 | /** |
1679 | * Retrieve the site url. |
1680 | * |
1681 | * Returns the 'site_url' option with the appropriate protocol, 'https' if |
1682 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
1683 | * overridden. |
1684 | * |