Re: What is meant by this code?

On Sat, Jan 31, 2015 at 7:39 PM, Abdul Abdul <abdul.sw84@gmail.com> wrote: > Lester. > > Thanks for your reply. What is confusing me most is: > > $exif as $key => $section > > I understood the foreach from the manual, and we have to have a key/value. > But, what is =>? > > On Sat, Jan 31, 2015 at 12:28 AM, Lester Caine <lester@lsces.co.uk> wrote: > > > On 31/01/15 02:06, Ken Robinson wrote: > > >> Hello, > > >> > > >> I'm new to PHP. I came across the following code: > > >> > > >> .... > > >> .... > > >> $exif = exif_read_data($image); > > >> foreach ($exif as $key => $section) { > > >> foreach ($section as $name => $val) { > > >> ..... > > >> ..... > > >> > > >> What are we doing here in the "foreach"? What is "as"? > > > > > > RTFM > > > > > > > > > http://php.net/manual/en/control-structures.foreach.php > > > > I've read the manual ... now I'm more confused :) > > Seriously ... If one is starting to use PHP reading the manual is the > > LAST place to start, but there is not a good alternative to direct > > people to. Most tutorials are simply last in old style practices! > > > > Abdul ... > > A useful little trick is print_r($exif); > > This will show just what has been returned by exif_read ... which is an > > multi level array of data. foreach simply scans the array converting > > each element of the array - in this case creating a copy of an element > > in $section, but $section is an array itself so the second foreach pulls > > out the values. > > > > Now hopefully reading the manual will make a little more sense :) > > > > -- > > Lester Caine - G8HFL > > ----------------------------- > > Contact - http://lsces.co.uk/wiki/?page=contact > > L.S.Caine Electronic Services - http://lsces.co.uk > > EnquirySolve - http://enquirysolve.com/ > > Model Engineers Digital Workshop - http://medw.co.uk > > Rainbow Digital Media - http://rainbowdigitalmedia.co.uk > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > Please don't top post, putting your replies on top, should be on bottom of convo (it is against the rules). A good explanation w/example can be found here: http://stackoverflow.com/a/1241831/1935500 In a nutshell it is a separator between the key and value in arrays/objects used in foreach loops.