get image and display through php script

Question

i notice some webpage display images using php scripts. how do i do that and wats the benefit? forexample: http://static.ak.fbcdn.net/rsrc.php/yp/r/kk8dc2UJYJ4.png

You need to draw a picture on php?

Zhasulan Berdibekov
– Zhasulan Berdibekov

2011-01-10 07:42:15 +00:00
Commented Jan 10, 2011 at 7:42 — Zhasulan Berdibekov
– Zhasulan Berdibekov, Commented Jan 10, 2011 at 7:42

ThiefMaster · Accepted Answer · 2011-01-10 07:40:45Z

4

Why showing images through PHP might be useful:

Being able to control/restrict access to the images in a complex way (e.g. not just by http auth, ip, referer etc.).
Being able to dynamically modify images before they are displayed (watermarks for example)

How you do that:

Send the appropriate header for whatver image type (e.g. header('image/png');) you want to show and then output the raw image data, e.g. using readfile()

answered Jan 10, 2011 at 7:40

ThiefMaster

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