Question

我想创建一个Bingo脚本。我已经用随机数编码了一个6x6模式，每行都有一定的范围。但现在它多次输出相同的数字，我希望它是所有随机数，有人可以帮助我吗？

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Indzendopdracht 051R3</title>
</head>

<body>
<?PHP

function printBingocard(){

$bingoNumbers = array(
"rij_1" => array(10,11,12,13,14,15,16,17,18,19),
"rij_2" => array(20,21,22,23,24,25,26,27,28,29),
"rij_3" => array(30,31,32,33,34,35,36,37,38,39),
"rij_4" => array(40,41,42,43,44,45,46,47,48,49),
"rij_5" => array(50,51,52,53,54,55,56,57,58,59),
"rij_6" => array(60,61,62,63,64,65,66,67,68,69)
);



$rand_keys = array_rand($bingoNumbers, 1);  
$rows = array();


foreach($bingoNumbers["rij_1"] as $bn_rij1){
    if($bn_rij1 > 10 && $bn_rij1 <= 16){
      $rows["row1"][]="<td>" . $bingoNumbers["rij_1"][array_rand($bingoNumbers["rij_1"])] ."</td>";
    }
}
foreach($bingoNumbers["rij_2"] as $bn_rij2){
    if($bn_rij2 > 20 && $bn_rij2 <= 26){
      $rows["row2"][]="<td>" . $bingoNumbers["rij_2"][array_rand($bingoNumbers["rij_2"])] ."</td>";
    }
}
foreach($bingoNumbers["rij_3"] as $bn_rij3){
    if($bn_rij3 > 30 && $bn_rij3 <= 36){
      $rows["row3"][]="<td>" . $bingoNumbers["rij_3"][array_rand($bingoNumbers["rij_3"])] ."</td>";
    }
}
foreach($bingoNumbers["rij_4"] as $bn_rij4){
    if($bn_rij4 > 40 && $bn_rij4 <= 46){
      $rows["row4"][]="<td>" . $bingoNumbers["rij_4"][array_rand($bingoNumbers["rij_4"])] ."</td>";
    }
}
foreach($bingoNumbers["rij_5"] as $bn_rij5){
    if($bn_rij5 > 50 && $bn_rij5 <= 56){
      $rows["row5"][]="<td>" . $bingoNumbers["rij_5"][array_rand($bingoNumbers["rij_5"])] ."</td>";
    }
}
foreach($bingoNumbers["rij_6"] as $bn_rij6){
    if($bn_rij6 > 60 && $bn_rij6 <= 66){
      $rows["row6"][]="<td>" . $bingoNumbers["rij_6"][array_rand($bingoNumbers["rij_6"])] ."</td>";
    }
}


echo "<table>";
foreach($rows as $row){
    echo "<tr>";
    foreach($row as $r){
        echo $r;
    }
    echo "</tr>";
}
echo "</table>";
}//END OF FUNCTION


printBingocard();
?>
</body>
</html>

Answer 1

为什么不使用shuffle()？就像现在一样，你永远不会检查array_rand()产生重复的数字，所以是的 - 你会得到愚蠢的。

效率更高：

foreach(array_keys($bingoNumbers) as $key) {
    shuffle($bingoNumbers[$key]);
}

一个 SINGLE 循环，每个子数组都被洗牌，没有重复，远远少于代码。

＆＃13;

$bingoNumbers = array(
	"rij_1" => array(10,11,12,13,14,15,16,17,18,19),
	"rij_2" => array(20,21,22,23,24,25,26,27,28,29),
	"rij_3" => array(30,31,32,33,34,35,36,37,38,39),
	"rij_4" => array(40,41,42,43,44,45,46,47,48,49),
	"rij_5" => array(50,51,52,53,54,55,56,57,58,59),
	"rij_6" => array(60,61,62,63,64,65,66,67,68,69)
);
	
foreach(array_keys($bingoNumbers) as $key)
	shuffle($bingoNumbers[$key]);
			
echo "<table border='1'>";
foreach($bingoNumbers as $v)
	echo "<tr><td>" . implode("</td><td>", $v) . "</td></tr>";
echo "</table>";

＆＃13;

Demo

如果您只想要一个6x6网格，只需要array_slice()您的子阵列，例如

＆＃13;

$bingoNumbers = array(
	"rij_1" => array(10,11,12,13,14,15,16,17,18,19),
	"rij_2" => array(20,21,22,23,24,25,26,27,28,29),
	"rij_3" => array(30,31,32,33,34,35,36,37,38,39),
	"rij_4" => array(40,41,42,43,44,45,46,47,48,49),
	"rij_5" => array(50,51,52,53,54,55,56,57,58,59),
	"rij_6" => array(60,61,62,63,64,65,66,67,68,69)
);
	
foreach(array_keys($bingoNumbers) as $key)
	shuffle($bingoNumbers[$key]);
			
echo "<table border='1'>";
foreach($bingoNumbers as $v)
	echo "<tr><td>" . implode("</td><td>", array_slice($v, 0, 6)) . "</td></tr>";
                                             //^^^^^^^^^^^^ Just slice your sub array
echo "</table>";

＆＃13;

Demo

从array_rand中获取双数

1 个答案: