php中RGB转十六进制、十六进制转RGB

在js调色器中，不同的浏览器获取到的颜色值会不一样，比如ie是十六进制：#FF00FF，而火狐和谷歌浏览器中：rgb(255,255,255)。

      16) {$r = $c % 16;    $c = ($c / 16) >> 0;    array_push($hexAr, $hex[$r]);}array_push($hexAr, $hex[$c]);    $ret = array_reverse($hexAr);    $item = implode('', $ret);    $item = str_pad($item, 2, '0', STR_PAD_LEFT);    $hexColor .= $item;     }    return $hexColor; }/*** 十六进制转 RGB* @param string $hexColor 十六颜色 ,如：#ff00ff* @return array RGB数组*/function hColor2RGB($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;}print_r(RGBToHex("rgb(255,255,255)")); //RGB转 16进制print_r(hColor2RGB('#ff00ff')); //十六进制转 RGB

代码执行转换结果：

16进制颜色转换为RGB色值，另一种方法：

      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;}print_r(hex2rgb("#FFFFFF"));?>

附：