* Thus wrote Mag: > Hey! > Am having a little problem working out the logic in > this, basically I pass a graphics path to a function > and it should give/retrun me the URL path. > > <?php > $url='http://x.com/t1/t2/t3/blah.html'; > > function ret_url($rel_path) > { } > > ?> > > so I pass a relitive url like this > $a=ret_url('/blah.jpg';) >... > > /blah.jpg // should return http://x.com/blah.jpg > > /imgs/blah.jpg // return http://x.com/imgs/ blah.jpg
Basic concating a file: return $base_url . $rel_path; > > imgs/blah.jpg //return > http://x.com/t1/t2/t3/imgs/blah.jpg ensure first char is absolute: if ($rel_path{0} != '/') { $rel_path = '/' . $rel_path; } > > ../imgs/blah.jpg // etc > > /../imgs/blah.jpg //etc I tend to use str_replace to remove this. /* remove .. and translate // to / */ $rel_path = str_replace(array('..', '//', array('', '/'), $rel_path); > > http://some-site-blah.com/imgs/blah.jpg // return the > same url check for http:// if(substr($rel_path, 0, 6) == 'http://') ) return $rel_path; Put those all together and you'll have your function. Curt -- Quoth the Raven, "Nevermore." -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
