PHP打印环状数圈

chunjihong

　　如题:

int i=[number];

打印如下的图形:


1  2  3  4

12 13 14 5

11 16 15 6

10 9  8  7


PHP代码如下

function sort_recursive(&$array){
foreach($array as $key=>$edge){
ksort($edge,true);
$array[$key]=$edge;
}
ksort($array,true);
}
function generate(&$container,$start_value,$x,$grids_edge){
$rec_times=ceil($grids_edge/2);
$center=$grids_edge&1?false:$start_value+4*$rec_times*($rec_times+1);
if($center){
$index=$x+ceil($grids_edge/2);
$container[$index][$index]=$center;
}
for($i=0;$i<$grids_edge;$i++){
$right=$x+$grids_edge;
$basevalue=$start_value+$i;
$container[$x][$x+$i]=$base_value;
$container[$x+$i][$right]=$grids_edge+$base_value;
$container[$right][$right-$i]=$grids_edge*2+$base_value;
$container[$right-$i][$x]=$grids_edge*3+$base_value;
}
}

$container=array();
$data=array(
1 =>array(1,6),
25=>array(2,4),
41=>array(3,2),
);
/*
$data=array(
1 =>array(1,2),
);
$data=array(
1 =>array(1,5),
21=>array(2,3),
33=>array(3,1),
);
$data=array(
1 =>array(1,3),
13=>array(2,1),
);
*/
foreach($data as $key=>$val){
generate($container,$key,$val[0],$val[1]);
}
sort_recursive($container);
$table='<table border=1>';
foreach($container as $key=>$edge){
$table.='<tr>';
foreach($edge as $val){
$table.='<td>'.$val.'</td>';
}
$table.='</tr>';
}
$table.='</table>';
echo $table;