php颜色转换函数hex-rgb(将十六进制格式转成十进制格式)


复制代码 代码如下:



<?php  


 function hex2rgb($colour) {  


    if ($colour [0] == ‘#’) {  


        $colour = substr ( $colour, 1 );  


    }  


    if (strlen ( $colour ) == 6) {  


        list ( $r, $g, $b ) = array ($colour [0] . $colour [1], $colour [2] . $colour [3], $colour [4] . $colour [5] );  


    } elseif (strlen ( $colour ) == 3) {  


        list ( $r, $g, $b ) = array ($colour [0] . $colour [0], $colour [1] . $colour [1], $colour [2] . $colour [2] );  


    } else {  


        return false;  


    }  


    $r = hexdec ( $r );  


    $g = hexdec ( $g );  


    $b = hexdec ( $b );  


    return array (‘red’ => $r, ‘green’ => $g, ‘blue’ => $b );  


}  


$b = hex2rgb ( “#ff0” );  


print_r ( $b );  


?> 



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