Home >Backend Development >PHP Tutorial >php生成随机颜色方法汇总_PHP

php生成随机颜色方法汇总_PHP

WBOY
WBOYOriginal
2016-05-31 18:15:481405browse

方法一:
随机生成颜色值(例如 FF00FF).

color.php

代码如下:


function random_color(){
    mt_srand((double)microtime()*1000000);
    $c = '';
    while(strlen($c)         $c .= sprintf("%02X", mt_rand(0, 255));
    }
    return $c;
}

方法二:

代码如下:


function randrgb() 

  $str='0123456789ABCDEF'; 
    $estr='#'; 
    $len=strlen($str); 
    for($i=1;$i     { 
        $num=rand(0,$len-1);   
        $estr=$estr.$str[$num];  
    } 
    return $estr; 
}

方法三:

代码如下:


function randColor(){
    $colors = array();
    for($i = 0;$i         $colors[] = dechex(rand(0,15));
    }
    return implode('',$colors);
}

使用方法如下:
随机颜色:#'.randColor().'';?>

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn