做一张xbm图片_PHP

xbm是一种简单的双色图片位图格式，在早期的cgi中运用较多，目前多用于计数器上
setXBM(1234567890,0);

function setXBM($num,$mode=0) {
settype($num,"string");
$mode = $mode?0xff:0x00;
$int_width = strlen($num); //位数
$count_width=8; //单个数字宽度
$count_height=16; //高度

$bitmap = array(
0 => array(0xff, 0xff, 0xff, 0xc3, 0x99, 0x99, 0x99, 0x99, 0x99, 0x99, 0x99, 0x99, 0xc3, 0xff, 0xff, 0xff),
1 => array(0xff, 0xff, 0xff, 0xcf, 0xc7, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xff, 0xff, 0xff),
2 => array(0xff, 0xff, 0xff, 0xc3, 0x99, 0x9f, 0x9f, 0xcf, 0xe7, 0xf3, 0xf9, 0xf9, 0x81, 0xff, 0xff, 0xff),
3 => array(0xff, 0xff, 0xff, 0xc3, 0x99, 0x9f, 0x9f, 0xc7, 0x9f, 0x9f, 0x9f, 0x99, 0xc3, 0xff, 0xff, 0xff),
4 => array(0xff, 0xff, 0xff, 0xcf, 0xcf, 0xc7, 0xc7, 0xcb, 0xcb, 0xcd, 0x81, 0xcf, 0x87, 0xff, 0xff, 0xff),
5 => array(0xff, 0xff, 0xff, 0x81, 0xf9, 0xf9, 0xf9, 0xc1, 0x9f, 0x9f, 0x9f, 0x99, 0xc3, 0xff, 0xff, 0xff),
6 => array(0xff, 0xff, 0xff, 0xc7, 0xf3, 0xf9, 0xf9, 0xc1, 0x99, 0x99, 0x99, 0x99, 0xc3, 0xff, 0xff, 0xff),
7 => array(0xff, 0xff, 0xff, 0x81, 0x99, 0x9f, 0x9f, 0xcf, 0xcf, 0xe7, 0xe7, 0xf3, 0xf3, 0xff, 0xff, 0xff),
8 => array(0xff, 0xff, 0xff, 0xc3, 0x99, 0x99, 0x99, 0xc3, 0x99, 0x99, 0x99, 0x99, 0xc3, 0xff, 0xff, 0xff),
9 => array(0xff, 0xff, 0xff, 0xc3, 0x99, 0x99, 0x99, 0x99, 0x83, 0x9f, 0x9f, 0xcf, 0xe3, 0xff, 0xff, 0xff)
);

echo "#define counter_width " .($count_width * $int_width)."\r\n";
echo "#define counter_height " .$count_height. "\r\n";
echo "static unsigned char counter_bits[] = {\r\n";
for($i=0; $i<$count_height; ++$i) {
for($j = 0; $j < $int_width; ++$j) {
printf("0x%2x, ",$bitmap[$num[$j]][$i]^$mode);
}
}
echo "\r\n};";
}
?>