php - Get the URL of current script even if it's included? -

i have php script needs know it's url, if it's included within script. i've tried:

$_server['request_uri'] 

but doesn't return uri script--rather, returns uri including script. i've tried:

dirname ( __file__ ) 

but can't seem convert absolute url.

can script find own url, if it's being included in script? help!

i think can't, @ least not in robust , portable way. php encourages developers think url maps directly script, 1 may convinced each script s there's function(s) gives public url.

unfortunately, not true. quick reference, think of mod_rewrite or chance script may requested reverse proxy.

if need functionality, have design mistake, if tell problem (in terms of functionality, not implementation) may come right solution you.