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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
1716                l=d.location,
1717                e=encodeURIComponent,
1718                u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4';
1719                a=function(){if(!,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;};
1720                if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a();
1721                void(0)";
1723      $link = str_replace(array("\r", "\n", "\t"),  '', $link);
1725      return apply_filters('shortcut_link', $link);
1726 }
1728 /**
1729  * Retrieve the site url.
1730  *
1731  * Returns the 'site_url' option with the appropriate protocol,  'https' if
1732  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
1733  * overridden.
1734  *