random hex generator?

[Anon]

anyone ever seen or know of a php script for generating random hex color values?

[ruppelm]

Hi,

this should work. (I did not test it, though...)

<?php

srand((double)microtime()*1000000);

$decnumber = rand(0, 16777215);

$colorcode = dechex($decnumber);

echo $colorcode;

?>

Cheers, Markus

[ruppelm]

@!#$, I didn't consider the leading "0"s.
But THIS should work:

<?php

srand((double)microtime()*1000000);

$decnumber = rand(0, 16777215);

$colorcode = dechex($decnumber);

while (strlen($colorcode) < 6)
{
$colorcode = "0".$colorcode;
}

echo $colorcode;

?>

Sorry, Markus

[Anon]

I did work, sort of, it appears to only be showing a specific range of colors, warm tones only and reports this error:

Warning: rand(): Invalid range: 0..16777215

but otherwise it's very cool, I'm just not sure what a valid range would be.

[ruppelm]

Hi,

I've tried it on my machine and it worked fine. Anyway, try this one:

<?php

srand((double)microtime()*1000000);
$red = rand(0, 255);
$hexred = dechex($red);
if ($red < 16)
{
$hexred = "0".$hexred;
}

srand((double)microtime()*1000000);
$green = rand(0, 255);
$hexgreen = dechex($green);
if ($green < 16)
{
$hexgreen = "0".$hexgreen;
}

srand((double)microtime()*1000000);
$blue = rand(0, 255);
$hexblue = dechex($blue);
if ($blue < 16)
{
$hexblue = "0".$hexblue;
}

$colorcode = $hexred.$hexgreen.$hexblue;

echo $colorcode;

?>

Cheers, Markus