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php转换颜色为其反色的方法

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Release: 2016-06-06 20:04:39
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这篇文章主要介绍了php转换颜色为其反色的方法,涉及php操作颜色数值的相关技巧,需要的朋友可以参考下

本文实例讲述了php转换颜色为其反色的方法。分享给大家供大家参考。具体分析如下:

这段php代码可以把一个颜色变成与之相反的颜色编码,,如:白色变成黑色,蓝色变成黄色

function color_inverse($color){ $color = str_replace('#', '', $color); if (strlen($color) != 6){ return '000000'; } $rgb = ''; for ($x=0;$x white print color_inverse('#000000'); // --> returns #ffffff // blue -> yellow print color_inverse('#0000FF'); // --> #FFFF00

希望本文所述对大家的php程序设计有所帮助。

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