php 函数将16进制颜色代码转换为 RGB 色值

利用php函数将16禁止的颜色代码转换为RGB色值。

/** 
* function 16进制颜色转换为RGB色值
* author www.maopiaopiao.com
*/ 
function hex2rgb($hexColor){
    $color=str_replace('#','',$hexColor);
    if (strlen($color)> 3){
        $rgb=array(
            'r'=>hexdec(substr($color,0,2)),
            'g'=>hexdec(substr($color,2,2)),
            'b'=>hexdec(substr($color,4,2))
        );
    }else{
        $color=str_replace('#','',$hexColor);
        $r=substr($color,0,1). substr($color,0,1);
        $g=substr($color,1,1). substr($color,1,1);
        $b=substr($color,2,1). substr($color,2,1);
        $rgb=array( 
            'r'=>hexdec($r),
            'g'=>hexdec($g),
            'b'=>hexdec($b)
        );
    }
    return $rgb;
}

例如：

print_r(hex2rgb('#F03'));
//输出：Array ( [r] => 255 [g] => 0 [b] => 51 )