Mega Code Archive
A couple of functions that convert an IP address into its color code
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and not-color-code. Useful when viewing an apache log with a mysql result grouped by IP
<?
/*this function converts $ipaddr into a color string*/
function IP2Color($ipaddr) {
$pieces=explode(".",$ipaddr);
$color="";
for($i=0;$i<3;$i++) {
if(($pieces[$i]>=0) && ($pieces[$i]<=255)) {
$color.=dechex($pieces[$i]);
}
}
$color=substr($color."000000",0,6);
return("#".strtoupper($color));
}
/*this function converts $ipaddr
to anti color string*/
function IP2NotColor($ipaddr) {
$pieces=explode(".",$ipaddr);
$color="";
for($i=0;$i<3;$i++) {
if(($pieces[$i]>=0) && ($pieces[$i]<=255)) {
$color.=dechex((128+$pieces[$i]) % 255);
}
}
$color=substr($color."000000",0,6);
return("#".strtoupper($color));
}
Example:
$IP=getenv("REMOTE_ADDR");
print "<table><tr>\n";
print " <td bgcolor='".IP2Color($IP)."'><font face='Arial,Courier'
color='".IP2NotColor($IP)."'>$IP</font></td>\n";
print "</tr></table>\n";
?>
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