php颜色值转换 php实现16进制数字与颜色值的转换
-
-
/** - * 颜色值与16进制数字的转换
- * edit: WWW.JBXUE.COM
- */
- function toHex($N) {
- if ($N==NULL) return "00";
- if ($N==0) return "00";
- $N=max(0,$N);
- $N=min($N,255);
- $N=round($N);
- $string = "0123456789ABCDEF";
- $val = (($N-$N%16)/16);
- $s1 = $string{$val};
- $val = ($N%16);
- $s2 = $string{$val};
- return $s1.$s2;
- }
//颜色值转换为16进制数字 - function rgb2hex($r,$g,$b){
- return toHex($r).toHex($g).toHex($b);
- }
- //16进制数字转换为颜色值
- function hex2rgb($N){
- $dou = str_split($N,2);
- return array(
- "R" => hexdec($dou[0]),
- "G" => hexdec($dou[1]),
- "B" => hexdec($dou[2])
- );
- }
echo rgb2hex(106,48,48); - echo '
';
- print_r(hex2rgb("6A3030"));
- ?>
-
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