在 for 循环中更改增量值
[英]Changing increment value in for loop
问题描述
I am trying to set the correct value for $matchno.
我正在尝试为 $matchno 设置正确的值。 It should increment by 1 only.它应该只增加 1。 Below is the code and example of the output array and I changed the array manually to show how I would like the array to be.下面是输出数组的代码和示例，我手动更改了数组以显示我希望数组的样子。 The concern is only with $matchno只关心 $matchno
$max = 16;
$tournament_size = $max / 2;
$rounds = log($tournament_size) / log(2);
$curr = $tournament_size / 2;
$offset = $max;
$matchnoInBlock = -1;
for ($i = 0; $i < $rounds; $i++)
{
$inner = array();
for ($i2 = 0; $i2 < $curr; $i2++)
{
$matchnoInBlock++;
$matchno = $matchnoInBlock + $offset;
$inner[] = array(0, 0, $matchno);
}
$lower_bracket_results[] = $inner;
$lower_bracket_results[] = $inner;
$curr /= 2;
}
echo '<pre>';
print_r($lower_bracket_results);
echo '</pre>';
Output of array:-数组的输出：-
Array
(
[0] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 16
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 17
)
[2] => Array
(
[0] => 0
[1] => 0
[2] => 18
)
[3] => Array
(
[0] => 0
[1] => 0
[2] => 19
)
)
[1] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 16
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 17
)
[2] => Array
(
[0] => 0
[1] => 0
[2] => 18
)
[3] => Array
(
[0] => 0
[1] => 0
[2] => 19
)
)
[2] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 20
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 21
)
)
[3] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 20
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 21
)
)
[4] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 22
)
)
[5] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 22
)
)
)
I would like the array to be like this: (only difference is with $matchno)我希望数组是这样的：（唯一的区别是 $matchno）
Array
(
[0] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 16
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 17
)
[2] => Array
(
[0] => 0
[1] => 0
[2] => 18
)
[3] => Array
(
[0] => 0
[1] => 0
[2] => 19
)
)
[1] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 20
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 21
)
[2] => Array
(
[0] => 0
[1] => 0
[2] => 22
)
[3] => Array
(
[0] => 0
[1] => 0
[2] => 23
)
)
[2] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 24
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 25
)
)
[3] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 26
)
[1] => Array
(
[0] => 0
[1] => 0
[2] => 27
)
)
[4] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 28
)
)
[5] => Array
(
[0] => Array
(
[0] => 0
[1] => 0
[2] => 29
)
)
)
Any help on this thank you对此有任何帮助谢谢
1 个解决方案
解决方案1
1 已采纳 2016-03-22 15:30:05
If I got your question correctly, you just need to increment $matchno after assigning it to the array.如果我正确回答了您的问题，您只需要在将$matchno分配给数组后增加它。
$matchno = 16;
for($x = 0; $x <= 3; $x++)
{
$lower_bracket_results[0][$x][2] = $matchno;
$matchno++;
}
or in a shorter fashion或以更短的方式
$matchno = 16;
for($x = 0; $x <= 3; $x++)
{
$lower_bracket_results[0][$x][2] = $matchno++;
}
Edit after question edit问题编辑后编辑
Since in your code you have a double因为在你的代码中你有一个双
$lower_bracket_results[] = $inner;
$lower_bracket_results[] = $inner;
I assume you need to build 2 times this array but still incrementing the $matchno .我假设您需要构建这个数组的 2 倍，但仍然增加$matchno 。 Your issue here was that you were assigning the same $inner array to 2 entries in the array $lower_bracket_results .您的问题是您将相同的$inner数组分配给数组$lower_bracket_results中的 2 个条目。 You can wrap the logic for creating the inner array in a function and call it 2 times.您可以将用于创建内部数组的逻辑包装在一个函数中并调用它 2 次。 $matchnoInBlock is passed by reference , so that inside the function you can increase the value of the same variable passed by the main context. $matchnoInBlock是通过引用传递的，因此在函数内部，您可以增加主上下文传递的相同变量的值。
Here how it would look like, without changing much of how you wrote it:这是它的外观，没有改变你写它的方式：
<?php
function createInnerArray($curr, $offset, &$matchnoInBlock) {
$inner = array();
for ($i2 = 0; $i2 < $curr; $i2++)
{
$matchnoInBlock++;
$matchno = $matchnoInBlock + $offset;
$inner[] = array(0, 0, $matchno);
}
return $inner;
}
$max = 16;
$tournament_size = $max / 2;
$rounds = log($tournament_size) / log(2);
$curr = $tournament_size / 2;
$offset = 16;
$matchnoInBlock = -1;
for ($i = 0; $i < $rounds; $i++)
{
$lower_bracket_results[] = createInnerArray($curr, $offset, $matchnoInBlock);;
$lower_bracket_results[] = createInnerArray($curr, $offset, $matchnoInBlock);;
$curr /= 2;
}
echo '<pre>';
print_r($lower_bracket_results);
echo '</pre>';
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