随机颜色的产生与应用

1、随机颜色函数

function randColor() {
    $pattern = '1234567890ABCDEF';//字符池
    for($i=0;$i<6;$i++) {
        $color16x .= $pattern{mt_rand(0,15)};//生成php随机数
    }
    return '#'.$color16x;
}

2、结合从mysql中取值举例

$reason_group = "select distinct(reason) from filter where owner='$owner';";
$query_reason = mysql_query($reason_group) or die("Invalid query: " . mysql_error());

while ($row_reason = mysql_fetch_object($query_reason))
{
    $color = randColor();
    $reason .= " $row_reason->reason /";
    unset($color);
}

$reason = rtrim($reason, "/");