h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Why not get a random value for each of the RGB hex values?

$randomcolor = "#".dechex(rand(0,15)).dechex(rand(0,15)).dechex(rand(0,15)).dechex(rand(0,15)).dechex(rand(0,15)).dechex(rand(0,15));

One problem might be the amazingly gaudy colours you'll get!

A better way might be:

$randomcolor = "#" . dechex(rand(0,255)) . dechex(rand(0,255)) . dechex(rand(0,255));

It would shave a bit of time off processing time.

Surely you could do that with just one rand(), goweb...

$randomcolour = "#" . dechex(rand(0xFFFFFF));

~

PS, R'Win does mention this in the first paragraph, but dismisses it for the exact reason you stated.

s/goweb/Wandie&goweb/

"$randomcolour = "#" . dechex(rand(0xFFFFFF));"

Except FFFFFF is already in hex form.

Well, sticking 0x in front of a hex number turns it into an integer (internal representation) the same way just sticking a decimal integer in does. The output of rand will be an integer (internal representation) which, when converted to a string, will become a decimal integer and needs dechex() to turn it into a hex string.

Hope that makes sense!

~

I made a script to do that a while back. It's not as neat but it gets the job done - http://richardwinskill.co.uk/php_crbg.php

OwlofDoom said:
PS, R'Win does mention this in the first paragraph, but dismisses it for the exact reason you stated


*blush*

Sarcastically: I don't know. Commenting on entries without reading them first...