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PHP Color Chart
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This script was totally inspired form a JavaScript program written by < href="http://members.xoom.com/yoboseyo" target=_blank>Dion ; I have "translated" it to PHP and added some modifications. The puropse is generating a color chart containing 4096 colors with hexadecimal values in a few lines.
<?php
$color=Array('00','20','30','40','50','60','70','80','90','A0','B0','C0','D0','E0','F0','FF');
//declares variable "color", corresponding with the 16 values above, I think they are the most useful
for ($R=0;$R<16;$R++) {
//function for : the variable "R" (Red) is between 0 and 16
echo('<center><table style = "border-width: 3; border-color: #FFFFFF ; border-style: ridge" width =""50%"">');
//drawing a table
for ($G=0;$G<16;$G++) {
//function for : the variable "G" (Green) is between 0 and 16
echo("<tr>");
for ($B=0;$B<16;$B++) {
//function for : the variable "B" (Blue) is between 0 and 16
echo('<td bgcolor="#'.$color[$R].$color[$G].$color[$B].'">');
//all values of R, G and B will be crossed and applied as background
echo('<p style= "color:#'.$color[15-$B].$color[15-$G].$color[15-$R].'; font-family: Verdana ; font-size: 10;"> '); // just to make the color of written values different from the applied one 
echo($color[$R].$color[$G].$color[$B].' </p></td>'); } //writing the hexadecimal values
echo('</tr>'); }
echo('</table></center>');
?>
Hint: if you want to dispaly all hexadecimal values from "0" to "FF" ; don't write "manually" 255 values; try this script I've made, copy and paste the result displayed on your browser:
<?php echo "$color = Array(";
//relatively to the chart's script
for ($a = 0 ; $a < 255 ; $a++)
// a is between 0 and hexadecimal FF
{
$b = dechex($a) ;
// b converts a to hexadecimal
if ($a < 16 )
// if a < F (Hx)
{
$b = "0".$b ;
//for example: "9" becomes "09" ; "B" => "0B", etc.
}
$c = "'".$b."'," ;
echo $c ;
}
echo "'ff');"; // to avoid the comma "," at the end ?>
To compress page to gz format, and so make the page faster to execute; type at the top of the page:
<?php
ob_start( 'ob_gzhandler' );
?>
Very efficientRelated download: PHP Color Chart - noversion
Downloaded 346 times
Click here to download the source
8 kb UP
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