最大，最小和总和随机数php

Question

这是代码

<?php
echo "<table border="0">";
for ($d = 1; $d <= $times;$d++ )
 {
echo "<tr><td>";
echo  rand(1,6), "n";
echo "</td></tr>";
} 
echo "</table>"; ?>

我正在尝试获得最大，最小和 rand(1,6), "n";的总和但是我无法弄清楚。这正在杀死我。

Answer 1

$rands = array(); // rand() storage
for($d = 1; $d <= $times; $d++){
    $rands[$d] = rand(1, 6); // store rands
}
var_dump($min = min($rands)); // min() of rands
var_dump($min = max($rands)); // max() of rands

^请参阅示例代码。

（ PS ：我使用[$d]，因为他具有1个基于1的增量，并且可能需要进一步的逻辑。这种方式，兰德键匹配他的$ d，可以在以后轻松访问。）

Answer 2

您也需要在数组中收集随机数：

echo "<table border="0">";
$rands = array();
#################
for ($d = 1; $d <= $times; $d++)
{
    echo "<tr><td>";
    echo $rands[] = rand(1,6), "n"; 
         ###########
    echo "</td></tr>";
} 
echo "</table>"; ?>

之后，您可以使用max，min和array_sum（所有这些链接都带有不错的示例）。

由于您的代码已经显示，您应该开始在执行数据处理的代码和执行HTML输出的代码之间有所不同：

// handle the data
$randomNumbers = array();
foreach (range(1, $times) as $d)
{
    $randomNumbers[$d] = rand(1,6);
}

// output the data
echo '<table border="0">';
foreach ($randomNumbers as $number) {
    printf("<tr><td>%d</tr></td>", $number);
}
echo "</table>";

Answer 3

<?php
$min = 10;
$max = -1;
$sum = 0;
for ($d = 1; $d <= $times; $d++) {
    $n = rand(1, 6);
    if ($n < $min) $min = $n;
    if ($n > $max) $max = $n;
    $sum += $n;
}
echo $min . ' ' . $max . ' ' . $sum . '<br/>';
?>

Answer 4

$sum=0; 
for ($d = 1; $d <= $times;$d++ ) { 
  echo "<tr><td>";  
  $r=rand(1,6);
  $sum +=$r;
  echo  "$r, n"; 
  echo "</td></tr>"; 
  if ($d==1) { $min=$r; $max=$r; } 
  if ($r>$max) $max=$r;
  if ($r<$min) $min=$r;
} 
// do something with $min, $max and $sum;

Answer 5

<?php      
  $total = 0;
  echo "<table border="0">";
  for ($d = 1; $d <= $times;$d++ )
  { 
       $rand = rand(1,6);
       $total += $rand;    
       $array[] = $rand;
       echo "<tr><td>";
       echo  $rand, "n";
       echo "</td></tr>";
  } 
echo "</table>"; ?>
echo $total;
echo min($array);
echo max($array);